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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Hỗn hợp X gồm 1 anđehit và 1 axit (số nguyên tử C trong axit nhiều hơn số nguyên tử C trong anđehit 1 nguyên tử). Đốt cháy hoàn toàn 0,1 mol X thu được 8,064 lít CO2 (đktc) và 2,88 gam nước. Mặt khác, cho toàn bộ lượng X trên vào dung dịch AgNO3 /NH3 thấy xuất hiện m gam kết tủa. Giá trị lớn nhất của m có thể là:

Hóa học Lớp 12
Xem chi tiết 3.9 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P10)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanks from 35 to 44.Why did you decide to read, and will you keep reading to the end? Do you expect to understand every single part of it and will you remember anything about it in a fortnight’s ..35….? Common sense ..36… that the answers to these questions depend on “readability”- whether the ..37… matter is interesting, and the argument clear and the …38….attractive. But psychologists are trying to …39… why people read – and often don’t read certain things, for example technical information. They also have examined so much the writing as the readers.Even the most technically confident people often 40… instructions for the video or home computer in favor of hands- on experience. And people frequently take little notice of consumer information, whether on nutritional labels or in the small print of contracts. Psychologists researching reading …41…. to assume that both beginners and competent readers read everything put in front of them from start to finish. There are ….42….among them about the role of eyes, memory and brain during the process. Some people believe that fluent readers take in very letter or word they see; others …43….that reader rely on memory or context to carry them from one phrase to another. But they have always assumed that the reading process is the same: reading starts, comprehension ….44……, then reading stops.Điền vào ô 35

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 891 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.It was suggested that Pedro studies the material more thoroughly before attempting to pass the exam

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 64.1 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.8 K lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the history of technology, computers and calculators were innovative developments. They are essentially different from all other machines because they have a memory. This memory stores instructions and information. In a calculator, the instructions are the various functions of arithmetic, which are permanently remembered by the machine and cannot be altered or added to. The information consists of the numbers keyed in.An electronic pocket calculator can perform almost instant arithmetic. A calculator requires an input unit to feed in numbers, a processing unit to make the calculation, a memory unit, and an output unit to display the result. The calculator is powered by a small battery or by a panel of solar cells. Inside is a microchip that contains the memory and processing units and also controls the input unit, which is the keyboard, and the output unit, which is the display.The input unit has keys for numbers and operations. Beneath the key is a printed circuit board containing a set of contacts for each key. Pressing a key closes the contacts and sends a signal along a pair of lines in the circuit board to the processing unit, in which the binary code for that key is stored in the memory. The processing unit also sends the code to the display. Each key is connected by a different pair of lines to the processing unit, which repeatedly checks the lines to find out when a pair is linked by a key.The memory unit stores the arithmetic instructions for the processing unit and holds the temporary results that occur during calculation. Storage cells in the memory unit hold the binary codes for the keys that have been pressed. The number codes, together with the operation code for the plus key, are held in temporary cells until the processing unit requires them.When the equals key is pressed, it sends a signal to the processing unit. This takes the operation code-for example, addition-and the two numbers being held in the memory unit and performs the operation on the two numbers. A full adder does the addition, and the result goes to the decoder in the calculator's microchip. This code is then sent to the liquid crystal display unit, which shows the result, or output, of the calculation.What can be inferred about machines that are not calculators or computers?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.3 K lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the history of technology, computers and calculators were innovative developments. They are essentially different from all other machines because they have a memory. This memory stores instructions and information. In a calculator, the instructions are the various functions of arithmetic, which are permanently remembered by the machine and cannot be altered or added to. The information consists of the numbers keyed in.An electronic pocket calculator can perform almost instant arithmetic. A calculator requires an input unit to feed in numbers, a processing unit to make the calculation, a memory unit, and an output unit to display the result. The calculator is powered by a small battery or by a panel of solar cells. Inside is a microchip that contains the memory and processing units and also controls the input unit, which is the keyboard, and the output unit, which is the display.The input unit has keys for numbers and operations. Beneath the key is a printed circuit board containing a set of contacts for each key. Pressing a key closes the contacts and sends a signal along a pair of lines in the circuit board to the processing unit, in which the binary code for that key is stored in the memory. The processing unit also sends the code to the display. Each key is connected by a different pair of lines to the processing unit, which repeatedly checks the lines to find out when a pair is linked by a key.The memory unit stores the arithmetic instructions for the processing unit and holds the temporary results that occur during calculation. Storage cells in the memory unit hold the binary codes for the keys that have been pressed. The number codes, together with the operation code for the plus key, are held in temporary cells until the processing unit requires them.When the equals key is pressed, it sends a signal to the processing unit. This takes the operation code-for example, addition-and the two numbers being held in the memory unit and performs the operation on the two numbers. A full adder does the addition, and the result goes to the decoder in the calculator's microchip. This code is then sent to the liquid crystal display unit, which shows the result, or output, of the calculation.The word "innovative" in line 1 could best be replaced by _________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 689 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 4.4 K lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the 1960s, The Beatles were probably the most famous pop group in the whole world. Since then, there havebeen a great many groups that have achieved enormous fame, so it is perhaps difficult now to imagine how sensational The Beatles were at that time. They were four boys from the north of England and none of them had any training in music. They started by performing and recording songs by black Americans and they had some success with these songs. Then they started writing their own songs and that was when they became really popular. The Beatles changed pop music. They were the first pop group to achieve great success from songs they had written themselves. After that it became common for groups and singers to write their own songs. The Beatles did not have a long career. Their first hit record was in 1963 and they split up in 1970. They stopped doing live performances in 1966 because it had become too dangerous for them - their fans were so excited that they surrounded them and tried to take their clothes as souvenirs! However, today some of their songs remain as famous as they were when they first came out. Throughout the world, many people can sing part of a Beatles song if you ask them.The word “they” in line 10 refers to __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.7 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 08)

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 520 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of peopleWhich of the following is NOT mentioned in paragraph 3 about earthquakes?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 427 lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Thành phần hoá học của supephotphat đơn là:

Hóa học Lớp 11
Xem chi tiết 10.5 K lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the 1960s, The Beatles were probably the most famous pop group in the whole world. Since then, there havebeen a great many groups that have achieved enormous fame, so it is perhaps difficult now to imagine how sensational The Beatles were at that time. They were four boys from the north of England and none of them had any training in music. They started by performing and recording songs by black Americans and they had some success with these songs. Then they started writing their own songs and that was when they became really popular. The Beatles changed pop music. They were the first pop group to achieve great success from songs they had written themselves. After that it became common for groups and singers to write their own songs. The Beatles did not have a long career. Their first hit record was in 1963 and they split up in 1970. They stopped doing live performances in 1966 because it had become too dangerous for them - their fans were so excited that they surrounded them and tried to take their clothes as souvenirs! However, today some of their songs remain as famous as they were when they first came out. Throughout the world, many people can sing part of a Beatles song if you ask them.The Beatles stopped their live performances because __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.7 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 08)

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Độ dinh dưỡng của phân lân được đánh giá bằng hàm lượng của:

Hóa học Lớp 11
Xem chi tiết 287 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of peopleBased on the passage, what is probably true about tsunamis?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 539 lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the 1960s, The Beatles were probably the most famous pop group in the whole world. Since then, there havebeen a great many groups that have achieved enormous fame, so it is perhaps difficult now to imagine how sensational The Beatles were at that time. They were four boys from the north of England and none of them had any training in music. They started by performing and recording songs by black Americans and they had some success with these songs. Then they started writing their own songs and that was when they became really popular. The Beatles changed pop music. They were the first pop group to achieve great success from songs they had written themselves. After that it became common for groups and singers to write their own songs. The Beatles did not have a long career. Their first hit record was in 1963 and they split up in 1970. They stopped doing live performances in 1966 because it had become too dangerous for them - their fans were so excited that they surrounded them and tried to take their clothes as souvenirs! However, today some of their songs remain as famous as they were when they first came out. Throughout the world, many people can sing part of a Beatles song if you ask themWhat is NOT TRUE about the Beatles?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 585 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of peopleWhich of the following is true regarding the crust?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 853 lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P10)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions To prepare for a job interview, you should jot down your qualifications, work experience as well as some important information about yourself.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 32.6 K lượt xem 1 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the 1960s, The Beatles were probably the most famous pop group in the whole world. Since then, there havebeen a great many groups that have achieved enormous fame, so it is perhaps difficult now to imagine how sensational The Beatles were at that time. They were four boys from the north of England and none of them had any training in music. They started by performing and recording songs by black Americans and they had some success with these songs. Then they started writing their own songs and that was when they became really popular. The Beatles changed pop music. They were the first pop group to achieve great success from songs they had written themselves. After that it became common for groups and singers to write their own songs. The Beatles did not have a long career. Their first hit record was in 1963 and they split up in 1970. They stopped doing live performances in 1966 because it had become too dangerous for them - their fans were so excited that they surrounded them and tried to take their clothes as souvenirs! However, today some of their songs remain as famous as they were when they first came out. Throughout the world, many people can sing part of a Beatles song if you ask themThe first songs of the Beatles were __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 658 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of peopleThe word "perceive" in bold in paragraph 3 is closest in meaning to___________

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 453 lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P10)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questionsIn English, the subject precedes the verb.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 16.9 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P10)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questionsRoget's Thesaurus, a collection of English words and phrases, was originally arranged by the ideas they express rather than by alphabetical order.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 402 lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the 1960s, The Beatles were probably the most famous pop group in the whole world. Since then, there havebeen a great many groups that have achieved enormous fame, so it is perhaps difficult now to imagine how sensational The Beatles were at that time. They were four boys from the north of England and none of them had any training in music. They started by performing and recording songs by black Americans and they had some success with these songs. Then they started writing their own songs and that was when they became really popular. The Beatles changed pop music. They were the first pop group to achieve great success from songs they had written themselves. After that it became common for groups and singers to write their own songs. The Beatles did not have a long career. Their first hit record was in 1963 and they split up in 1970. They stopped doing live performances in 1966 because it had become too dangerous for them - their fans were so excited that they surrounded them and tried to take their clothes as souvenirs! However, today some of their songs remain as famous as they were when they first came out. Throughout the world, many people can sing part of a Beatles song if you ask themThe word “sensational” is closest in meaning to __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 4.5 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of peopleThe word "adjoining" in bold in paragraph 2 is closest in meaning to___________

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 504 lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Muốn tăng cường sức chống bệnh, chống rét và chịu hạn cho cây người ta dùng loại phân bón nào?

Hóa học Lớp 11
Xem chi tiết 485 lượt xem 6 năm trước
BÀI TẬP VỀ PHẢN ỨNG TRUNG HÒA

Đốt cháy hoàn toàn 23,8 gam hỗn hợp X gồm axit acrylic, axit adipic, axit propanoic và glixerol (trong đó số mol axit acrylic bằng số mol axit propanoic) bằng O2 dư thu được hỗn hợp Y gồm khí và hơi. Dẫn Y vào dung dịch chứa 0,7 mol Ba(OH)2 thu được 98,5 gam kết tủa và dung dịch Z. Đun nóng Z lại thấy xuất hiện kết tủa. Cho 23,8 gam hỗn hợp X tác dụng với 300ml dung dịch KOH 1M, sau khi các phản ứng xảy ra hoàn toàn, cô cạn dung dịch thu được chất rắn khan có khối lượng là:

Hóa học Lớp 11
Xem chi tiết 2.8 K lượt xem 6 năm trước
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 words that differs from the rest in the position of the main stress in each of the following questions from 49 to 50

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the 1960s, The Beatles were probably the most famous pop group in the whole world. Since then, there havebeen a great many groups that have achieved enormous fame, so it is perhaps difficult now to imagine how sensational The Beatles were at that time. They were four boys from the north of England and none of them had any training in music. They started by performing and recording songs by black Americans and they had some success with these songs. Then they started writing their own songs and that was when they became really popular. The Beatles changed pop music. They were the first pop group to achieve great success from songs they had written themselves. After that it became common for groups and singers to write their own songs. The Beatles did not have a long career. Their first hit record was in 1963 and they split up in 1970. They stopped doing live performances in 1966 because it had become too dangerous for them - their fans were so excited that they surrounded them and tried to take their clothes as souvenirs! However, today some of their songs remain as famous as they were when they first came out. Throughout the world, many people can sing part of a Beatles song if you ask them.The four boys of the Beatles __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 607 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of peopleWhat is the passage mainly about?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 535 lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Urê được điều chế từ:

Hóa học Lớp 11
Xem chi tiết 18.4 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of people(ID: 72667) The word "it" in bold in paragraph 2 refers to___________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 424 lượt xem 6 năm trước
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 words that differs from the rest in the position of the main stress in each of the following questions from 49 to 50

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.9 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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.There are a number of natural disasters that can strike across the globe. Two that are frequently linked to one another are earthquakes and tsunamis. Both of them can cause a great amount of devastation when they hit. However, tsunamis are the direct result of earthquakes and cannot happen without them.  The Earth has three main parts. They are the crust, the mantle, and the core. The crust is the outer layer of the Earth. It is not a single piece of land. Instead, it is comprised of a number of plates. There are a few enormous plates and many smaller ones. These plates essentially rest upon the mantle, which is fluid. As a result, the plates are in constant - yet slow - motion. The plates may move away from or towards other plates. In some cases, they collide violently with the plates adjoining them. The movement of the plates causes tension in the rock. Over a long time, this tension may build up. When it is released, an earthquake happens.  Tens of thousands of earthquakes happen every year. The vast majority are so small that only scientific instruments can perceive them. Others are powerful enough that people can feel them, yet they cause little harm or damage. More powerful earthquakes, however, can cause buildings, bridges, and other structures to collapse. They may additionally injure and skill thousands of people and might even cause the land to change it appearance. Since most of the Earth's surface is water, numerous earthquakes happen beneath the planet's oceans. Underwater earthquakes cause the seafloor to move. This results in the displacement of water in the ocean. When this occurs, a tsunami may form. This is a wave that forms on the surface and moves in all directions from the place where the earthquake happened. A tsunami moves extremely quickly and can travel thousands of kilometres. As it approaches land, the water near the coast gets sucked out to sea. This causes the tsunamis to increase in height. Minutes later, the tsunami arrives. A large tsunami - one more than ten meters in height - can travel far inland. As it does that, it can flood the land, destroy human settlements, and kill large numbers of peopleWhich of the following statements does paragraph 1 support?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 733 lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

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.In the 1960s, The Beatles were probably the most famous pop group in the whole world. Since then, there havebeen a great many groups that have achieved enormous fame, so it is perhaps difficult now to imagine how sensational The Beatles were at that time. They were four boys from the north of England and none of them had any training in music. They started by performing and recording songs by black Americans and they had some success with these songs. Then they started writing their own songs and that was when they became really popular. The Beatles changed pop music. They were the first pop group to achieve great success from songs they had written themselves. After that it became common for groups and singers to write their own songs. The Beatles did not have a long career. Their first hit record was in 1963 and they split up in 1970. They stopped doing live performances in 1966 because it had become too dangerous for them - their fans were so excited that they surrounded them and tried to take their clothes as souvenirs! However, today some of their songs remain as famous as they were when they first came out. Throughout the world, many people can sing part of a Beatles song if you ask them.The passage is mainly about __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 819 lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P10)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrasethat is OPPOSITE in meaning to the underlined part in each of the following questionsPolluted water and increased water temperatures have driven many species to the verge of extinction

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Đạm urê có công thức là:

Hóa học Lớp 11
Xem chi tiết 5 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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 questionsNever have people been so well informed as they are now, thanks to TV news programs

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 7.7 K lượt xem 6 năm trước
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 word that differs from the rest in the position of the main stress in each of the following questions from 47 to 48

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 3.8 K lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Trong các loại phân bón: NH4Cl, (NH2)2CO, (NH4)2SO4, NH4NO3. Phân nào có hàm lượng đạm cao nhất?

Hóa học Lớp 11
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P10)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrasethat is OPPOSITE in meaning to the underlined part in each of the following questionsHe had never experienced such discourtesy towards the president as it occurred at the annual meeting in May.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrases that best fits each of the numbered blanks.To many people, their friends are the most important in their life. Really good friends always (31) __________ joys and sorrows with you and never turn their backs on you. Your best friend maybe someone you have known all your life or someone you have grown (32) __________ with.There are all sorts of things that can (33) __________ about this special relationship. It maybe the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages. (34) __________ , it really takes you years to get to know someone well enough to consider your best friend.To the (35) __________ of us, this is someone we trust completely and who understans us better than anyone else. It's the person you can tell him or her your most intimate secretsĐiền ô số 35

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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 questionsI should have finished my work last night but I was exhausted

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.8 K lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Để đánh giá chất lượng phân đạm, người ta dựa vào chỉ số:

Hóa học Lớp 11
Xem chi tiết 1 K lượt xem 6 năm trước
Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrases that best fits each of the numbered blanks.To many people, their friends are the most important in their life. Really good friends always (31) __________ joys and sorrows with you and never turn their backs on you. Your best friend maybe someone you have known all your life or someone you have grown (32) __________ with.There are all sorts of things that can (33) __________ about this special relationship. It maybe the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages. (34) __________ , it really takes you years to get to know someone well enough to consider your best friend.To the (35) __________ of us, this is someone we trust completely and who understans us better than anyone else. It's the person you can tell him or her your most intimate secretsĐiền ô số 34

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 392 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

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. No one has seen Linda since the day of the party

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.4 K lượt xem 1 năm trước
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 word that differs from the rest in the position of the main stress in each of the following questions from 47 to 48

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 4.4 K lượt xem 6 năm trước
208 Bài tập Nito - photpho cực hay có đáp án (P5)

Hầu hết phân đạm amoni: NH4NO3, NH4Cl, (NH4)2SO4 không thích hợp cho loại đất chua là do

Hóa học Lớp 11
Xem chi tiết 6.1 K lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 02)

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questionsSchool uniform is compulsory in most of Vietnamese schools

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 1)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrases that best fits each of the numbered blanks.To many people, their friends are the most important in their life. Really good friends always (31) __________ joys and sorrows with you and never turn their backs on you. Your best friend maybe someone you have known all your life or someone you have grown (32) __________ with.There are all sorts of things that can (33) __________ about this special relationship. It maybe the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages. (34) __________ , it really takes you years to get to know someone well enough to consider your best friend.To the (35) __________ of us, this is someone we trust completely and who understans us better than anyone else. It's the person you can tell him or her your most intimate secretsĐiền ô số 33

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 416 lượt xem 6 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 07)

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 from 40 to 46.At the beginning of the nineteenth century, the American educational system was desperately in need of reform. Private schools existed, but only for the very rich. There were very few public schools because of the strong sentiment that children who would grow up to be laborers should not “waste” their time on education but should instead prepare themselves for their life’s work. It was in the face of this public sentiment that educational reformers set about their task. Horace Mann, probably the most famous of the reformers, felt that there was no excuse in a republic for any citizen to be uneducated. As Manager of Education in the state of Massachusetts from 1837 to 1848, he initiated various changes, which were soon matched in other school districts around the country. He extended the school year from five to six months and improved the quality of teachers by instituting teacher education and raising teacher salaries. Although these changes did not bring about a sudden improvement in the educational system, they at least increased public awareness as to the need for a further strengthening of the system.According to the passage, which sentence is NOT TRUE?

Tiếng Anh Tốt nghiệp THPT
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