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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 25)

Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption.In what way are cheese molds, sugar, and catfish slime similar?

Tiếng Anh Tốt nghiệp THPT

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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 9)

Phát biểu nào đúng khi nói về các nhân tố tiến hoá:

Sinh học Tốt nghiệp THPT

Xem chi tiết 659 lượt xem 6 năm trước

Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Read the following passage and mark the letter A,B, C or D on your answer sheet to indicate the best answerMeditationMeditation has been in use for thousands of years: people have always searched for inner quiet and physical relaxation, which may be for spiritual, self-realization or health reasons. It is nothing unusual and you do not have to be a great athlete to be able to achieve and enjoy the benefits of meditation at both physical and mental levels.What, then, is meditation? As one expert put it recently, it is just sitting and relaxing. (A) Many people find that their lives are so full of the demands of work, family, friends and organized leisure pursuits that they have no time to “stand and state”. Many are so busy planning and working towards the future that they take little pleasure from the here and now. In their hurry to “get on” they miss out on the simple pleasures of life; the change of the seasons, the singing of a bird or the innocent wonder of a child. But beauty and joy are there to be seen and experienced, even in the most industrial of landscapes. (B) Meditation can be a good way of just taking time out and allowing yourself to relate to and appreciate the moment. It may be by walking along the seashore, or sitting by a stream, or just by noticing silence in a still room and enjoying it. (C)Rather than forcing yourself to take up a difficult physical position, just relax; sit in a chair or take a walk in a favorite landscape at a steady pace. It is not a good idea to slump or lie down, as this tend to leads to sleep. It is the relaxed focus that is necessary. If you sit down, do so with your feet flat on the floor, hands resting in your lap or on the arms of the chair, and your head comfortably balanced. If you are walking, do so slowly and carefully, aware of the movement of each foot, and the contact with the ground below. (D) Notice the reaction of the ground to your feet. This is an extremely simple but effective exercise in becoming truly aware of the present.Meditation, above all, is about staying with the moment, being in touch with one’s surroundings and one’s inner world, much of which is more easily achieved when you are in a meditative state. According to the passage, why is meditation important

Tiếng Anh Tốt nghiệp THPT

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Hỗn hợp E chứa hai anđehit X, Y đều mạch hở, không phân nhánh và số nguyên tử C trong Y nhiều hơn X là 1. Hiđro hóa hoàn toàn 2,18 gam hỗn hợp E cần dùng 2,464 lít (đktc) khí H2 (Xúc tác Ni, to được F chứa 2 ancol tương ứng. Đốt cháy hoàn toàn F cần dùng 0,155 mol O2, thu được 2,464 lít CO2 (đktc). Nếu đun nóng 0,048 mol E với một lượng dư dung dịch AgNO3 trong môi trường amoniac thì thu được m gam kết tủa. Giá trị của m gần giá trị nào nhất sau đây?

Hóa học Lớp 12

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Read the following passage and mark the letter A,B, C or D on your answer sheet to indicate the best answerMeditationMeditation has been in use for thousands of years: people have always searched for inner quiet and physical relaxation, which may be for spiritual, self-realization or health reasons. It is nothing unusual and you do not have to be a great athlete to be able to achieve and enjoy the benefits of meditation at both physical and mental levels.What, then, is meditation? As one expert put it recently, it is just sitting and relaxing. (A) Many people find that their lives are so full of the demands of work, family, friends and organized leisure pursuits that they have no time to “stand and state”. Many are so busy planning and working towards the future that they take little pleasure from the here and now. In their hurry to “get on” they miss out on the simple pleasures of life; the change of the seasons, the singing of a bird or the innocent wonder of a child. But beauty and joy are there to be seen and experienced, even in the most industrial of landscapes. (B) Meditation can be a good way of just taking time out and allowing yourself to relate to and appreciate the moment. It may be by walking along the seashore, or sitting by a stream, or just by noticing silence in a still room and enjoying it. (C)Rather than forcing yourself to take up a difficult physical position, just relax; sit in a chair or take a walk in a favorite landscape at a steady pace. It is not a good idea to slump or lie down, as this tend to leads to sleep. It is the relaxed focus that is necessary. If you sit down, do so with your feet flat on the floor, hands resting in your lap or on the arms of the chair, and your head comfortably balanced. If you are walking, do so slowly and carefully, aware of the movement of each foot, and the contact with the ground below. (D) Notice the reaction of the ground to your feet. This is an extremely simple but effective exercise in becoming truly aware of the present.Meditation, above all, is about staying with the moment, being in touch with one’s surroundings and one’s inner world, much of which is more easily achieved when you are in a meditative state. What does meditation involve?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 266 lượt xem 6 năm trước

20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 9)

Nếu RQ > 1 nghĩa là

Sinh học Tốt nghiệp THPT

Xem chi tiết 649 lượt xem 6 năm trước

Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Read the following passage and mark the letter A,B, C or D on your answer sheet to indicate the best answerMeditationMeditation has been in use for thousands of years: people have always searched for inner quiet and physical relaxation, which may be for spiritual, self-realization or health reasons. It is nothing unusual and you do not have to be a great athlete to be able to achieve and enjoy the benefits of meditation at both physical and mental levels.What, then, is meditation? As one expert put it recently, it is just sitting and relaxing. (A) Many people find that their lives are so full of the demands of work, family, friends and organized leisure pursuits that they have no time to “stand and state”. Many are so busy planning and working towards the future that they take little pleasure from the here and now. In their hurry to “get on” they miss out on the simple pleasures of life; the change of the seasons, the singing of a bird or the innocent wonder of a child. But beauty and joy are there to be seen and experienced, even in the most industrial of landscapes. (B) Meditation can be a good way of just taking time out and allowing yourself to relate to and appreciate the moment. It may be by walking along the seashore, or sitting by a stream, or just by noticing silence in a still room and enjoying it. (C)Rather than forcing yourself to take up a difficult physical position, just relax; sit in a chair or take a walk in a favorite landscape at a steady pace. It is not a good idea to slump or lie down, as this tend to leads to sleep. It is the relaxed focus that is necessary. If you sit down, do so with your feet flat on the floor, hands resting in your lap or on the arms of the chair, and your head comfortably balanced. If you are walking, do so slowly and carefully, aware of the movement of each foot, and the contact with the ground below. (D) Notice the reaction of the ground to your feet. This is an extremely simple but effective exercise in becoming truly aware of the present.Meditation, above all, is about staying with the moment, being in touch with one’s surroundings and one’s inner world, much of which is more easily achieved when you are in a meditative state. What is needed for someone to learn meditation?

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 393 lượt xem 6 năm trước

Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.Seth informed us of his retirement from the company. He did it when arriving at the meeting.

Tiếng Anh Tốt nghiệp THPT

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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 25)

Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption. The word "consumption" in the last paragraph is closest in meaning to_________.

Tiếng Anh Tốt nghiệp THPT

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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 9)

Màu sắc của chất nào không liên quan đến chức năng của nó?

Sinh học Tốt nghiệp THPT

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following question There are a number of (A) reason why population (B) is concentrated in temperate regions, but the wide variety and (C) availability of animal and vegetable life may be (D) the most important

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 3.6 K lượt xem 1 năm trước

20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 9)

Loại vi khuẩn trong đất không có lợi cho thực vật là

Sinh học Tốt nghiệp THPT

Xem chi tiết 14.3 K lượt xem 6 năm trước

Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.Julian dropped out of college after his first year. Now he regrets it.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following question(A) Despite his (B) broken legs, he managed to (C) get out of the car before (D) exploding

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following questionIn order for a doctor to (A) practice medicine in any hospital, it must be proved (B) that the doctor has the (C) qualities to do (D) so.

Tiếng Anh Tốt nghiệp THPT

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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.The demand was so great that they had to reprint the book immediately.

Tiếng Anh Tốt nghiệp THPT

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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 9)

Dưới đây là tháp sinh thái biểu diễn mối tương quan về sinh khối tương đối giữa động vật phù du và thực vật phù du trong hệ sinh thái đại dương:Sinh khối của động vật phù du lớn hơn sinh khối của thực vật phù du bởi vì:

Sinh học Tốt nghiệp THPT

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 15)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Living things include both the visible world of animals and plants as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization. Life can also “work”. Living creatures can take in energy from the environment. This energy, in the form of food, is changed to maintain metabolic processes and for survival. Life grows and develops. This means more than just getting larger in size. Living organisms also have the ability to rebuild and repair themselves when injured. Life can reproduce. Life can only come from other living creatures. Life can respond. Think about the last time you accidentally stubbed your toe. Almost instantly, you moved back in pain. Finally, life can adapt and respond to the demands placed on it by the environment. There are three basic types of adaptations that can occur in higher organisms. Reversible changes occur as a response to changes in the environment. Let's say you live near sea level and you travel to a mountainous area. You may begin to experience difficulty breathing and an increase in heart rate as a result of the change in height. These signs of sickness go away when you go back down to sea level. Body- related changes happen as a result of prolonged changes in the environment. Using the previous example, if you were to stay in the mountainous area for a long time, you would notice that your heart rate would begin to slow down and you would begin to breath normally. These changes are also reversible. Genotypic changes (caused by genetic change) take place within the genetic make up of the organism and are not reversible. An example would be the development of resistance to bug-killing chemicals by insects and spiders.Question:What is the energy for the living things called?

Tiếng Anh Tốt nghiệp THPT

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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 25)

Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption. Which one of the following is NOT an important quality of the catfish slime?

Tiếng Anh Tốt nghiệp THPT

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Đốt cháy hoàn toàn 0,6 mol hỗn hợp E chứa ancol X; este đơn chức Y và anđehit Z (X, Y, Z đều no, mạch hở và có cùng số nguyên tử hiđro) có tỉ lệ mol tương ứng 3: 1: 2 thu được 24,64 lít CO2 (đktc) và 21,6 gam nước. Mặt khác, cho 0,6 mol hỗn hợp E trên tác dụng với dung dịch AgNO3 dư trong NH3, đun nóng thu được m gam Ag. Giá trị m là:

Hóa học Lớp 12

Xem chi tiết 375 lượt xem 6 năm trước

Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following questionExperiments show that, for a bird, (A) doing a bird nest is (B) as (C) instinctive as (D) feeding.

Tiếng Anh Tốt nghiệp THPT

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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.If only you told me the truth about the theft.

Tiếng Anh Tốt nghiệp THPT

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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 9)

Cho cây dị hợp về 2 cặp gen có kiểu hình thân cao lai với cây thân thấp (P), đời con có 62,5% cây thân thấp : 37,5% cây thân cao. Có bao nhiêu kết luận nào sau đây không đúng?(1) Cho cây dị hợp hai cặp gen lai phân tích thì đời con có tỉ lệ phân li kiểu hình là 1:3.(2) Có 3 dòng thuần chủng về tính trạng cây cao.(3) Cây thấp ở thế hệ P dị hợp về một cặp gen.(4) Tính trạng chiều cao cây di truyền theo quy luật tương tác bổ sung.

Sinh học Tốt nghiệp THPT

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P10)

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following question(A) One of the students who (B) are being considered (C) for the scholarship (D) are from this university

Tiếng Anh Tốt nghiệp THPT

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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.“If I hadn’t had so much work to do, I would have gone to the movies.” said the boy.

Tiếng Anh Tốt nghiệp THPT

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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 25)

Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption.The gellike substance which promotes healing comes from_________.

Tiếng Anh Tốt nghiệp THPT

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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 9)

Giao phối ngẫu nhiên không phải là một nhân tố tiến hoá nhưng có vai trò quan trọng đối với tiến hoá. Ý nào sau đây không đề cập đến vai trò của giao phối ngẫu nhiên đối với tiến hoá

Sinh học Tốt nghiệp THPT

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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 25)

Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption.To the passage,_________

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 458 lượt xem 10 tháng trước

Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.Transgender people are denied the ability to join the armed forces due to discriminating policies implemented by the government.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P8)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.Although they are an inexpensive supplier of vitamins, minerals and high- quality protein, eggs, also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two- thirds of the suggested cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is eating substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching or boiling. A second alternative to regular eggs is a new type of egg, sometimes called “designer” eggs. These eggs are produced by hens that are fed low- fat diets consisting of ingredients such as canola oil, flax and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body’s production of blood cholesterol. Consequently, while it still makes sense to limit one’s intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level. According to the passage, egg substitutes cannot be used to make any of the following types of eggs EXCEPT ______.

Tiếng Anh Tốt nghiệp THPT

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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.They are having their house being painted by a construction company.

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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 25)

Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption. The word "eliminates" in paragraph 2 is closest in meaning to

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P8)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.Although they are an inexpensive supplier of vitamins, minerals and high- quality protein, eggs, also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two- thirds of the suggested cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is eating substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching or boiling. A second alternative to regular eggs is a new type of egg, sometimes called “designer” eggs. These eggs are produced by hens that are fed low- fat diets consisting of ingredients such as canola oil, flax and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body’s production of blood cholesterol. Consequently, while it still makes sense to limit one’s intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level. What is the meaning of “back up”?

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 15)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Living things include both the visible world of animals and plants as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization. Life can also “work”. Living creatures can take in energy from the environment. This energy, in the form of food, is changed to maintain metabolic processes and for survival. Life grows and develops. This means more than just getting larger in size. Living organisms also have the ability to rebuild and repair themselves when injured. Life can reproduce. Life can only come from other living creatures. Life can respond. Think about the last time you accidentally stubbed your toe. Almost instantly, you moved back in pain. Finally, life can adapt and respond to the demands placed on it by the environment. There are three basic types of adaptations that can occur in higher organisms. Reversible changes occur as a response to changes in the environment. Let's say you live near sea level and you travel to a mountainous area. You may begin to experience difficulty breathing and an increase in heart rate as a result of the change in height. These signs of sickness go away when you go back down to sea level. Body- related changes happen as a result of prolonged changes in the environment. Using the previous example, if you were to stay in the mountainous area for a long time, you would notice that your heart rate would begin to slow down and you would begin to breath normally. These changes are also reversible. Genotypic changes (caused by genetic change) take place within the genetic make up of the organism and are not reversible. An example would be the development of resistance to bug-killing chemicals by insects and spiders.Question:Which of the followings is NOT a feature of life?

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

X là hỗn hợp 2 anđehit đơn chức. Chia 0,12 mol X thành hai phần bằng nhau:- Đốt cháy hết phần 1 được 6,16 gam CO2 và 1,8 gam H2O.- Cho phần 2 tác dụng với lượng dư dung dịch AgNO3/NH3 được 17,28 gam bạc. X gồm 2 anđehit có công thức phân tử là

Hóa học Lớp 12

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P8)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.Although they are an inexpensive supplier of vitamins, minerals and high- quality protein, eggs, also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two- thirds of the suggested cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is eating substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching or boiling. A second alternative to regular eggs is a new type of egg, sometimes called “designer” eggs. These eggs are produced by hens that are fed low- fat diets consisting of ingredients such as canola oil, flax and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body’s production of blood cholesterol. Consequently, while it still makes sense to limit one’s intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level. The word “portrayed” could best be replaced by which of the following?

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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 07)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 9 to 20_______ large number of teachers agree that daily homework is necessary for students.

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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 2)

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.Some people say often that using cars is not so convenient as using motorbikes.

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Hai hợp chất X và Y là đồng đẳng kế tiếp, đều tác dụng với Na và làm mất màu nước brom. Khi đốt cháy hoàn toàn 0,1 mol hỗn hợp X và Y thu được 5,376 lít CO2 (đktc). Công thức cấu tạo tương ứng của X và Y là:

Hóa học Lớp 12

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P8)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.Although they are an inexpensive supplier of vitamins, minerals and high- quality protein, eggs, also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two- thirds of the suggested cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is eating substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching or boiling. A second alternative to regular eggs is a new type of egg, sometimes called “designer” eggs. These eggs are produced by hens that are fed low- fat diets consisting of ingredients such as canola oil, flax and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body’s production of blood cholesterol. Consequently, while it still makes sense to limit one’s intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level. According to the passage, one yolk contains approximately what fraction of the suggested daily limit for human consumption of cholesterol?

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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 25)

Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 51 to 60.Many folk cures which have been around for centuries may be more therapeutic than previously suspected. A case in point is that of penicillin Alexander Fleming did not just randomly choose cheese molds to study when he discovered this very important bacteria-killing substance. Moldy cheese was frequently given to patients as a remedy for illness at one time Fleming just isolated what it was about the cheese which cured the patients.In parts of South America, a powder obtained from grinding sugar cane is used for healing infections in wounds and ulcers. This usage may date back to pre-Colombian times. Experiments carried out on several hundred patients indicate that ordinary sugar in high concentrations is lethal to bacteria. Its suction effect eliminates dead cells and it generates a glasslike layer which protects the wound and ensures healing.Another example of folk medicine which scientists are investigating is that of Arab fishermen who rub their wounds with a venomous catfish to quicken healing. This catfish excretes a gellike slime which scientist found to contain antibiotics coagulant that helps close injured blood vessels, anti-inflammatory agents, and a chemical that directs production of a glue-like material that aids healing.It is hoped that by documenting these folk remedies and experimenting to see if results are indeed beneficial, an analysis of the substance be made, and synthetic substances be developed for human consumption. It can be inferred from the Message that Alexander Fleming_________.

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P8)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.Although they are an inexpensive supplier of vitamins, minerals and high- quality protein, eggs, also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two- thirds of the suggested cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is eating substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching or boiling. A second alternative to regular eggs is a new type of egg, sometimes called “designer” eggs. These eggs are produced by hens that are fed low- fat diets consisting of ingredients such as canola oil, flax and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body’s production of blood cholesterol. Consequently, while it still makes sense to limit one’s intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level. Which of the following could best replace the word “somewhat”?

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Đốt cháy hoàn toàn hỗn hợp X gồm anđehit axectic, etyl axetat và ancol propylic thu được 20,24 gam CO2 và 8,64 gam nước. Phần trăm khối lượng của ancol propylic trong X là:

Hóa học Lớp 12

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 15)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Living things include both the visible world of animals and plants as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization. Life can also “work”. Living creatures can take in energy from the environment. This energy, in the form of food, is changed to maintain metabolic processes and for survival. Life grows and develops. This means more than just getting larger in size. Living organisms also have the ability to rebuild and repair themselves when injured. Life can reproduce. Life can only come from other living creatures. Life can respond. Think about the last time you accidentally stubbed your toe. Almost instantly, you moved back in pain. Finally, life can adapt and respond to the demands placed on it by the environment. There are three basic types of adaptations that can occur in higher organisms. Reversible changes occur as a response to changes in the environment. Let's say you live near sea level and you travel to a mountainous area. You may begin to experience difficulty breathing and an increase in heart rate as a result of the change in height. These signs of sickness go away when you go back down to sea level. Body- related changes happen as a result of prolonged changes in the environment. Using the previous example, if you were to stay in the mountainous area for a long time, you would notice that your heart rate would begin to slow down and you would begin to breath normally. These changes are also reversible. Genotypic changes (caused by genetic change) take place within the genetic make up of the organism and are not reversible. An example would be the development of resistance to bug-killing chemicals by insects and spiders.Question: In what way is life organized?

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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 07)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 9 to 20Many young people have objected to _______ marriage, which is decided by the parents of the bride and groom.

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P8)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.Although they are an inexpensive supplier of vitamins, minerals and high- quality protein, eggs, also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two- thirds of the suggested cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is eating substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching or boiling. A second alternative to regular eggs is a new type of egg, sometimes called “designer” eggs. These eggs are produced by hens that are fed low- fat diets consisting of ingredients such as canola oil, flax and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body’s production of blood cholesterol. Consequently, while it still makes sense to limit one’s intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level. According to the author, which of the following may reduce blood cholesterol?

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Hai chất hữu cơ X và Y, thành phần nguyên tố đều gồm C, H, O, có cùng số nguyên tử cacbon (MX < MY). Khi đốt cháy hoàn toàn mỗi chất trong oxi dư đều thu được số mol H2O bằng số mol CO2. Cho 0,1 mol hỗn hợp gồm X và Y phản ứng hoàn toàn với lượng dư dung dịch AgNO3 trong NH3, thu được 28,08 gam Ag. Phần trăm khối lượng của X trong hỗn hợp ban đầu là:

Hóa học Lớp 12

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 15)

Read the following passage and mark the letter A, B, C or D on your answer sheet to choose the word of phrase that best fits each of the numbered blanks from 5 to 9. As teenagers approach university level, a decision has to be made on what course to pursue. In this world of diversity, (1) such a choice is not easy for both children and parents. In the old days, it was not much a problem to do the task because there were not so many diverse learning areas to choose from. Besides, there were only a few distinctive professional careers like doctor, engineer, accountant, nurse, teacher,etc. to think about. Most higher learning usually led to a financially successful life. (2) , the cost of education was not so high. Today’s world is entirely different from the things (3) have just been described. The job market is constantly changing due to innovative technology and new (4) . Meanwhile, most teenagers have difficulty in identifying their own interests. There are a variety of well- organized career talks and student counseling workshop to guide and help teenagers (5) __ what course to take. Furthermore, psychological tests are also used. Certain instruments such as surveys, interviews and computer software can help to find out preferences, interests, or learning styles of the students.Question 9:

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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P8)

Read the following passage and mark the letter A, B, C or D to indicate the correct answer.Although they are an inexpensive supplier of vitamins, minerals and high- quality protein, eggs, also contain a high level of blood cholesterol, one of the major causes of heart diseases. One egg yolk, in fact, contains a little more than two- thirds of the suggested cholesterol limit. This knowledge has driven egg sales to plummet in recent years, which in turn has brought about the development of several alternatives to eating regular eggs. One alternative is eating substitute eggs. These egg substitutes are not really eggs, but they look somewhat like eggs when they are cooked. They have the advantage of having low cholesterol rates, and they can be scrambled or used in baking. One disadvantage, however, is that they are not good for frying, poaching or boiling. A second alternative to regular eggs is a new type of egg, sometimes called “designer” eggs. These eggs are produced by hens that are fed low- fat diets consisting of ingredients such as canola oil, flax and rice bran. In spite of their diet, however, these hens produce eggs that contain the same amount of cholesterol as regular eggs. Yet, the producers of these eggs claim that eating their eggs will not raise the blood cholesterol in humans.Egg producers claim that their product has been portrayed unfairly. They cite scientific studies to back up their claim. And, in fact, studies on relationship between eggs and human cholesterol levels have brought mixed result. It may be that it is not the type of eggs that is the main determinant of cholesterol but the person who is eating the eggs. Some people may be more sensitive to cholesterol derived from food than other people. In fact, there is evidence that certain dietary fats stimulate the body’s production of blood cholesterol. Consequently, while it still makes sense to limit one’s intake of eggs, even designer eggs, it seems that doing this without regulating dietary fat will probably not help reduce the blood cholesterol level. What is meant by the phrase “mixed result”?

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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 07)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 9 to 20By the end of this year, my father _______ in this company for 12 years.

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Lớp 12

Lớp 11

Lớp 10

Ôn vào 10

Lớp 9

Lớp 8

Lớp 7

Lớp 6

Ôn vào 6

Lớp 5

Lớp 4

Lớp 3

Lớp 2

Lớp 1

Đại học

ĐGNL - ĐGTD

Tốt nghiệp THPT

Ôn vào 10

Ôn vào 6

ĐGNL-ĐGTD

Toán

Văn

Tiếng Anh

Vật lý

Hóa học

Sinh học

Lịch sử

Địa lý

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Toán

Toán

Toán

Văn

Tiếng Anh

Vật lý

Hóa học

Sinh học

Khoa học tự nhiên

Tin học

Lịch sử

Địa lí

Toán

Toán

Toán

Toán

Tiếng Việt

Tiếng Anh

Danh sách câu hỏi ( Có 2,479,854 câu hỏi trên 49,598 trang )

Phát biểu nào đúng khi nói về các nhân tố tiến hoá:

Nếu RQ > 1 nghĩa là

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.Seth informed us of his retirement from the company. He did it when arriving at the meeting.

Màu sắc của chất nào không liên quan đến chức năng của nó?

Loại vi khuẩn trong đất không có lợi cho thực vật là

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.Julian dropped out of college after his first year. Now he regrets it.

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following question(A) Despite his (B) broken legs, he managed to (C) get out of the car before (D) exploding

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following questionIn order for a doctor to (A) practice medicine in any hospital, it must be proved (B) that the doctor has the (C) qualities to do (D) so.

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.The demand was so great that they had to reprint the book immediately.

Dưới đây là tháp sinh thái biểu diễn mối tương quan về sinh khối tương đối giữa động vật phù du và thực vật phù du trong hệ sinh thái đại dương:Sinh khối của động vật phù du lớn hơn sinh khối của thực vật phù du bởi vì:

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following questionExperiments show that, for a bird, (A) doing a bird nest is (B) as (C) instinctive as (D) feeding.

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.If only you told me the truth about the theft.

Mark the letter A,B,C or D on your answer sheet to show the underlined part that needs correction in each of the following question(A) One of the students who (B) are being considered (C) for the scholarship (D) are from this university

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.“If I hadn’t had so much work to do, I would have gone to the movies.” said the boy.

Giao phối ngẫu nhiên không phải là một nhân tố tiến hoá nhưng có vai trò quan trọng đối với tiến hoá. Ý nào sau đây không đề cập đến vai trò của giao phối ngẫu nhiên đối với tiến hoá

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.Transgender people are denied the ability to join the armed forces due to discriminating policies implemented by the government.

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.They are having their house being painted by a construction company.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 9 to 20_______ large number of teachers agree that daily homework is necessary for students.

Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.Some people say often that using cars is not so convenient as using motorbikes.

Hai hợp chất X và Y là đồng đẳng kế tiếp, đều tác dụng với Na và làm mất màu nước brom. Khi đốt cháy hoàn toàn 0,1 mol hỗn hợp X và Y thu được 5,376 lít CO2 (đktc). Công thức cấu tạo tương ứng của X và Y là:

Đốt cháy hoàn toàn hỗn hợp X gồm anđehit axectic, etyl axetat và ancol propylic thu được 20,24 gam CO2 và 8,64 gam nước. Phần trăm khối lượng của ancol propylic trong X là:

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 9 to 20Many young people have objected to _______ marriage, which is decided by the parents of the bride and groom.

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions from 9 to 20By the end of this year, my father _______ in this company for 12 years.

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