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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Đốt cháy hoàn toàn hỗn hợp một hợp chất hữu cơ X, thu được 0,351 gam H2O và 0,4368 lít khí CO2 ở đktc. Biết X có phản ứng với Cu(OH)2 trong môi trường kiềm khi đun nóng. Chất X 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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 43

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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 42

Tiếng Anh Tốt nghiệp THPT

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

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. No sooner had the first intrepid male aviators safely returned to Earth than it seemed that women, too, had been smitten by an urge to fly. From mere spectators, they became willing passengers and finally pilots in their own right, plotting their skills and daring line against the hazards of the air and the skepticism of their male counterparts. In doing so they enlarged the traditional bounds of a women's world, won for their sex a new sense of competence and achievement, and contributed handsomely to the progress of aviation.But recognition of their abilities did not come easily. "Men do not believe us capable." the famed aviator Amelia Earhart once remarked to a friend. "Because we are women, seldom are we trusted to do an efficient job." Indeed, old attitudes died hard: when Charles Lindbergh visited the Soviet Union in 1938 with his wife, Anne-herself a pilot and gifted proponent of aviation - he was astonished to discover both men and women flying in the Soviet Air Force. Such conventional wisdom made it difficult for women to raise money for the up - to - date equipment they needed to compete on an equal basis with men. Yet they did compete, and often they triumphed finally despite the odds. Ruth Law, whose 590 - mile flight from Chicago to Hornell, New York, set a new nonstop distance record in 1916, exemplified the resourcefulness and grit demanded of any woman who wanted to fly. And when she addressed the Aero Club of America after completing her historic journey, her plainspoken words testified to a universal human motivation that was unaffected by gender: "My flight was done with no expectation of reward," she declared, "just purely for the love of accomplishment." (TOEFL Readings)What can be inferred from the passage about the United States Air Force in 1938?

Tiếng Anh Tốt nghiệp THPT

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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 following questions from 1 to 8.Accustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before the y were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indicationsof mood as “pleasant’, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next.Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D. w. Griffith’s film Birth of a Nation, which was released in 1915.The word “scores” most likely mean _______ .

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 517 lượt xem 6 năm trước

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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 41

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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 40

Tiếng Anh Tốt nghiệp THPT

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Hỗn hợp M gồm một anđehit và một ankin (có cùng số nguyên tử cacbon). Đốt cháy hoàn toàn x mol hỗn hợp M, thu được 3x mol CO2 và 1,8x mol H2O. Phần trăm số mol của anđehit trong hỗn hợp M là:

Hóa học Lớp 12

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Đốt cháy hoàn toàn 1 anđehit A mạch hở, no thu được CO2 và H2O theo tỉ lệ nA: nCO2: nH2O=1:3:2. Vậy A 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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 39

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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 38

Tiếng Anh Tốt nghiệp THPT

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

Ở 1 loài thú, alen A quy định lông đen trội hoàn toàn so với alen a quy định lông trắng. Một quần thể có CTDT như sau:ĐỰC: 0,5XAY :0,5XaY CÁI: 0,16XAXA :0,68XAXa:0,16XaXa Biết rằng quần thể ngẫu phối và tỉ lệ đực – cái là 1:1. Có các phát biểu về quần thể trên như sau:(1) Quần thể sẽ cân bằng ngay sau 1 thế hệ ngẫu phối.(2) CTDT của giới đực sẽ không bao giờ thay đổi nếu không có các tác động như đột biến, di – nhập gen,…(3) Khi quần thể CBDT thì sẽ có 62,5% cá thể lông đen trong quần thể.(4) Tỉ lệ đực lông trắng gấp 2 lần cái lông trắng.Số phát biểu đúng là:

Sinh học Tốt nghiệp THPT

Xem chi tiết 426 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 following questions from 1 to 8.Accustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before the y were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indicationsof mood as “pleasant’, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next.Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D. w. Griffith’s film Birth of a Nation, which was released in 1915.The word “composed” is closest in meaning to _______ .

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 745 lượt xem 6 năm trước

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

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.No sooner had the first intrepid male aviators safely returned to Earth than it seemed that women, too, had been smitten by an urge to fly. From mere spectators, they became willing passengers and finally pilots in their own right, plotting their skills and daring line against the hazards of the air and the skepticism of their male counterparts. In doing so they enlarged the traditional bounds of a women's world, won for their sex a new sense of competence and achievement, and contributed handsomely to the progress of aviation.But recognition of their abilities did not come easily. "Men do not believe us capable." the famed aviator Amelia Earhart once remarked to a friend. "Because we are women, seldom are we trusted to do an efficient job." Indeed, old attitudes died hard: when Charles Lindbergh visited the Soviet Union in 1938 with his wife, Anne-herself a pilot and gifted proponent of aviation - he was astonished to discover both men and women flying in the Soviet Air Force. Such conventional wisdom made it difficult for women to raise money for the up - to - date equipment they needed to compete on an equal basis with men. Yet they did compete, and often they triumphed finally despite the odds. Ruth Law, whose 590 - mile flight from Chicago to Hornell, New York, set a new nonstop distance record in 1916, exemplified the resourcefulness and grit demanded of any woman who wanted to fly. And when she addressed the Aero Club of America after completing her historic journey, her plainspoken words testified to a universal human motivation that was unaffected by gender: "My flight was done with no expectation of reward," she declared, "just purely for the love of accomplishment." (TOEFL Readings)According to the passage, women pilots were successful in all of the following EXCEPT _______.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 504 lượt xem 6 năm trước

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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 37

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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 36

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 749 lượt xem 6 năm trước

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 on your answer sheet to indicate the correct word for each of the blanks.The volume of traffic in many cities in the world today continues to expand. This (35)many problems, including serious air pollution, lengthy delays, and the greater risks (36) accidents. Clearly, something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible (37)is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who (38) the laws. In addition, drives could be required to pay for using particular routes at different times of the day. This system, (39) as “road pricing”, is already being introduced in a number of cities, using a special electronic card (40) to windscreen of the car.Another ways of (41) with the problem is to provide cheap parking on the outskirts of the city, and strictly control the number of vehicles allowed into the center. Drivers and passengers then use a special bus service for the (42) stage of their journey.Of course, the most important (43) is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares (44) _at an acceptable level.Điền vào ô 35

Tiếng Anh Tốt nghiệp THPT

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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 following questions from 1 to 8.Accustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before the y were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indicationsof mood as “pleasant’, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next.Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D. w. Griffith’s film Birth of a Nation, which was released in 1915.The passage mainly discusses music that was _______ .

Tiếng Anh Tốt nghiệp THPT

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Đốt cháy hoàn toàn một lượng anđehit A cần vừa đủ 2,52 lít O2 (đktc), được 4,4 gam CO2 và 1,35 gam H2O. A 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)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following sentencesThey have not made any effort to intergrate with the local community.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 474 lượt xem 6 năm trước

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

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.No sooner had the first intrepid male aviators safely returned to Earth than it seemed that women, too, had been smitten by an urge to fly. From mere spectators, they became willing passengers and finally pilots in their own right, plotting their skills and daring line against the hazards of the air and the skepticism of their male counterparts. In doing so they enlarged the traditional bounds of a women's world, won for their sex a new sense of competence and achievement, and contributed handsomely to the progress of aviation.But recognition of their abilities did not come easily. "Men do not believe us capable." the famed aviator Amelia Earhart once remarked to a friend. "Because we are women, seldom are we trusted to do an efficient job." Indeed, old attitudes died hard: when Charles Lindbergh visited the Soviet Union in 1938 with his wife, Anne-herself a pilot and gifted proponent of aviation - he was astonished to discover both men and women flying in the Soviet Air Force. Such conventional wisdom made it difficult for women to raise money for the up - to - date equipment they needed to compete on an equal basis with men. Yet they did compete, and often they triumphed finally despite the odds. Ruth Law, whose 590 - mile flight from Chicago to Hornell, New York, set a new nonstop distance record in 1916, exemplified the resourcefulness and grit demanded of any woman who wanted to fly. And when she addressed the Aero Club of America after completing her historic journey, her plainspoken words testified to a universal human motivation that was unaffected by gender: "My flight was done with no expectation of reward," she declared, "just purely for the love of accomplishment." (TOEFL Readings)Which of the following is the best title for this passage?

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)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following sentencesWhy are you being so arrogant?

Tiếng Anh Tốt nghiệp THPT

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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 following questions from 1 to 8.Accustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before the y were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indicationsof mood as “pleasant’, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next.Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D. w. Griffith’s film Birth of a Nation, which was released in 1915.According to the passage, what kind of business was the Edison Company?

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)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSET in meaning to the underlined part in each of the following sentencesHer style of dress accentuated her extreme slenderness.

Tiếng Anh Tốt nghiệp THPT

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Đốt cháy hoàn toàn một anđehit đơn chức, no, mạch hở A cần 17,92 lít O2 (đktc). Hấp thụ hết sản phẩm cháy vào nước vôi rong được 40 gam kết tủa và dung dịch X. Đun nóng dung dịch X lại có 10 gam kết tủa nữa. Công thức phân tử A là

Hóa học Lớp 12

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DẠNG 1: BÀI TẬP ĐỐT CHÁY

Đốt cháy hỗn hợp anđehit no, đơn chức thu được 0,4 mol CO2. Hiđro hoàn toàn 2 anđehit này cần 0,2 mol H2 thu được hỗn hợp 2 rượu no, đơn chức. Đốt cháy hoàn toàn hỗn hợp 2 rượu thì số mol H2O thu được là

Hóa học Lớp 12

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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 following questions from 1 to 8.Accustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before the y were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indicationsof mood as “pleasant’, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next.Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D. w. Griffith’s film Birth of a Nation, which was released in 1915.Which of the following notations is most likely to have been included on a musical cue sheet of the early 1900's?

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)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSET in meaning to the underlined part in each of the following sentencesShe is always diplomatic when she deals with angry students.

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)

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSET in meaning to the underlined part in each of the following sentencesUltimately, people rely on science to gain an understanding of biological phenomena

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

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.(A) Most sedimentary rocks (B) start forming when grains of clay, silt, or (C) sandy settle in river valleys (D) or on the bottom of lakes and oceans

Tiếng Anh Tốt nghiệp THPT

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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 following questions from 1 to 8.Accustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before the y were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indicationsof mood as “pleasant’, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next.Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D. w. Griffith’s film Birth of a Nation, which was released in 1915.The word “them” refers to _______ .

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)

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.(A) In early days, hydrochloric acid was (B) done by (C) heating a mixture of sodium chloride (D) with iron sulface

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 505 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 following questions from 1 to 8.Accustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment; when the Lumiere films were shown at the first public film exhibition in the United States in February 1896, they were accompanied by piano improvisations on popular tunes. At first, the music played bore no special relationship to the films; an accompaniment of any kind was sufficient. Within a very short time, however, the incongruity of playing lively music to a solemn film became apparent, and film pianists began to take some care in matching their pieces to the mood of the film.As movie theaters grew in number and importance, a violinist, and perhaps a cellist, would be added to the pianist in certain cases, and in the larger movie theaters small orchestras were formed. For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualification for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces. Since the conductor seldom saw the films until the night before the y were to be shown (if, indeed, the conductor was lucky enough to see them then), the musical arrangement was normally improvised in the greatest hurry.To help meet this difficulty, film distributing companies started the practice of publishing suggestions for musical accompaniments. In 1909, for example, the Edison Company began issuing with their films such indicationsof mood as “pleasant’, “sad”, “lively”. The suggestions became more explicit, and so emerged the musical cue sheet containing indications of mood, the titles of suitable pieces of music, and precise directions to show where one piece led into the next.Certain films had music especially composed for them. The most famous of these early special scores was that composed and arranged for D. w. Griffith’s film Birth of a Nation, which was released in 1915. It may be inferred from the passage that the first musical cue sheets appeared around _______ .

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)

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.(A) The diameter of the Sun is (B) more than one hundred (C) times (D) greater than the Earth.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp bài tập Hóa vô cơ hay và khó (P3)

Một dung dịch X chứa 0,1 mol Na+; 0,2 mol Ba2+; x mol HCO3- và y mol Cl-. Cô cạn dung dịch X rồi lấy chất rắn đem nung đến khối lượng không đổi thu được 43,6 gam chất rắn. Giá trị của x và y lần lượt 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)

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.The (A) freshman failed to follow the advice of (B) his senior that he (C) studied hard and not (D) go out too much.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp bài tập Hóa vô cơ hay và khó (P3)

Hòa tan hoàn toàn 19,2 gam hỗn hợp X gồm Fe, FeO, Fe3O4 và Fe2O3 trong 50 ml dung dịch H2SO4 18M (đặc, dư, đun nóng), thu được V lít khí SO2 (đktc) là sản phẩm khử duy nhất và dung dịch Y. Cho 450 ml dung dịch NaOH 2M vào dung dịch Y, thu được 21,4 gam kết tủa và dung dịch Z. Giá trị của V 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)

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.In case it (A) may rain (B) hard this afternoon, you (C) should take the rain coat (D) with you.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp bài tập Hóa vô cơ hay và khó (P3)

Hòa tan hoàn toàn m gam ZnSO4 vào nước được dung dịch X. Nếu cho 110 ml dung dịch KOH 2M vào X (TN1) thì thu được 3a gam kết tủa. Mặt khác, nếu cho 140 ml dung dịch KOH 2M vào X (TN2) thì thu được 2a gam kết tủa. Giá trị của m 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)

“Shall we go for a swim?” – “______”

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp bài tập Hóa vô cơ hay và khó (P3)

Hòa tan hoàn toàn m gam Fe bằng dung dịch HNO3, thu được dung dịch X và 1,12 lít NO (đktc). Thêm dung dịch chứa 0,1 mol HCl vào dung dịch X thì thấy khí NO tiếp tục thoát ra và thu được dung dịch Y. Để phản ứng hết với các chất trong dung dịch Y cần 115 ml dung dịch NaOH 2M. Giá trị của m 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)

The number of homeless people after the flood ______ dramatically.

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

I can’t ______ who it is. He is too far.

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Tổng hợp bài tập Hóa vô cơ hay và khó (P3)

Cho 4,55 gam bột Zn vào dung dịch hỗn hợp NaNO3 và H2SO4, đun nhẹ, trong điều kiện thích hợp, đến khi phản ứng xảy ra hoàn toàn thu được dung dịch A chứa m gam muối; 0,448 lít hỗn hợp khí B (đktc) gồm hai khí không màu, trong đó có một khí hóa nâu ngoài không khí và còn lại 1,3 gam chất rắn không tan. Biết tỉ khối hơi của B đối với H2 là 8. Giá trị của m là

Hóa học Lớp 12

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Tổng hợp bài tập Hóa vô cơ hay và khó (P3)

Hấp thụ hết 4,48 lít CO2 (đktc) vào dung dịch chứa x mol KOH và y mol K2CO3, thu được 200 ml dung dịch X. Lấy 100 ml dung dịch X cho từ từ vào 300 ml dung dịch HCl 0,5M, thu được 2,688 lít khí (đktc). Mặt khác, 100 ml dung dịch X tác dụng với dung dịch Ba(OH)2 dư, thu được 39,4 gam kết tủa. Giá trị của x 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)

It is a biological fact that children ______ their parents.

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

______ Nam Cao is a realistic writer, but he still used a lot of romance in his stories.

Tiếng Anh Tốt nghiệp THPT

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Tổng hợp bài tập Hóa vô cơ hay và khó (P3)

Cho một dung dịch X chứa a mol Ca2+, b mol Mg2+, c mol Na+, d mol HCO3-, e mol Cl-. Có thể dùng Ca(OH)2 để làm mất hoàn toàn tính cứng của X trong trường hợp :

Hóa học Lớp 12

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

If someone is down to earth, he is very ______.

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

I tried to talk to her, but she was as high as a ______.

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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

V-ACT

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 2,496,432 câu hỏi trên 49,929 trang )

Đốt cháy hoàn toàn hỗn hợp một hợp chất hữu cơ X, thu được 0,351 gam H2O và 0,4368 lít khí CO2 ở đktc. Biết X có phản ứng với Cu(OH)2 trong môi trường kiềm khi đun nóng. Chất X là:

Hỗn hợp M gồm một anđehit và một ankin (có cùng số nguyên tử cacbon). Đốt cháy hoàn toàn x mol hỗn hợp M, thu được 3x mol CO2 và 1,8x mol H2O. Phần trăm số mol của anđehit trong hỗn hợp M là:

Đốt cháy hoàn toàn 1 anđehit A mạch hở, no thu được CO2 và H2O theo tỉ lệ nA: nCO2: nH2O=1:3:2. Vậy A là:

Đốt cháy hoàn toàn một lượng anđehit A cần vừa đủ 2,52 lít O2 (đktc), được 4,4 gam CO2 và 1,35 gam H2O. A có công thức phân tử là

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following sentencesThey have not made any effort to intergrate with the local community.

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following sentencesWhy are you being so arrogant?

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSET in meaning to the underlined part in each of the following sentencesHer style of dress accentuated her extreme slenderness.

Đốt cháy hoàn toàn một anđehit đơn chức, no, mạch hở A cần 17,92 lít O2 (đktc). Hấp thụ hết sản phẩm cháy vào nước vôi rong được 40 gam kết tủa và dung dịch X. Đun nóng dung dịch X lại có 10 gam kết tủa nữa. Công thức phân tử A là

Đốt cháy hỗn hợp anđehit no, đơn chức thu được 0,4 mol CO2. Hiđro hoàn toàn 2 anđehit này cần 0,2 mol H2 thu được hỗn hợp 2 rượu no, đơn chức. Đốt cháy hoàn toàn hỗn hợp 2 rượu thì số mol H2O thu được là

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSET in meaning to the underlined part in each of the following sentencesShe is always diplomatic when she deals with angry students.

Mark the letter A, B, C or D on your answer sheet to indicate the word or phrase that is CLOSET in meaning to the underlined part in each of the following sentencesUltimately, people rely on science to gain an understanding of biological phenomena

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.(A) Most sedimentary rocks (B) start forming when grains of clay, silt, or (C) sandy settle in river valleys (D) or on the bottom of lakes and oceans

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.(A) In early days, hydrochloric acid was (B) done by (C) heating a mixture of sodium chloride (D) with iron sulface

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.(A) The diameter of the Sun is (B) more than one hundred (C) times (D) greater than the Earth.

Một dung dịch X chứa 0,1 mol Na+; 0,2 mol Ba2+; x mol HCO3- và y mol Cl-. Cô cạn dung dịch X rồi lấy chất rắn đem nung đến khối lượng không đổi thu được 43,6 gam chất rắn. Giá trị của x và y lần lượt là

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.The (A) freshman failed to follow the advice of (B) his senior that he (C) studied hard and not (D) go out too much.

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction.In case it (A) may rain (B) hard this afternoon, you (C) should take the rain coat (D) with you.

Hòa tan hoàn toàn m gam ZnSO4 vào nước được dung dịch X. Nếu cho 110 ml dung dịch KOH 2M vào X (TN1) thì thu được 3a gam kết tủa. Mặt khác, nếu cho 140 ml dung dịch KOH 2M vào X (TN2) thì thu được 2a gam kết tủa. Giá trị của m là

“Shall we go for a swim?” – “______”

The number of homeless people after the flood ______ dramatically.

I can’t ______ who it is. He is too far.

It is a biological fact that children ______ their parents.

______ Nam Cao is a realistic writer, but he still used a lot of romance in his stories.

Cho một dung dịch X chứa a mol Ca2+, b mol Mg2+, c mol Na+, d mol HCO3-, e mol Cl-. Có thể dùng Ca(OH)2 để làm mất hoàn toàn tính cứng của X trong trường hợp :

If someone is down to earth, he is very ______.

I tried to talk to her, but she was as high as a ______.

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