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Tuyển tập đề thi minh họa Hóa Học (Đề số 2)

Cho sơ đồ phản ứng sau: Trong X, Y, Z, T đều là các hợp chất khác nhau của crom. Chất T là

Hóa học Tốt nghiệp THPT

Xem chi tiết 414 lượt xem 6 năm trước

Bộ đề thi thử 2019 Tiếng Anh cực hay có lời giải chi tiết (Đề số 8)

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 2.5 K lượt xem 6 năm trước

230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 7)

Tiến hành thí nghiệm cho nitrobenzen tác dựng với HNO3 (đ)/H2SO4 (đ), nóng ta thấy:

Hóa học Tốt nghiệp THPT

Xem chi tiết 1.9 K lượt xem 6 năm trước

Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

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 28 to 34. One of the most difficult questions to answer is how much a job is worth. We naturally expect that a doctor’s salary will be higher than a bus conductor’s wage. But the question becomes much more difficult to answer when we compare, say, a miner with an engineer, or an unskilled man working on an oil-rig in the North Sea with a teacher in a secondary school. What the doctor, the engineer and teacher have is many years of training in order to obtain the necessary qualifications for their professions. We feel instinctively that these skills and these years, when they were studying instead of earning money, should be rewarded. At the same time we recognize that the work of the miner and the oil-rig laborer is both hard and dangerous, and that they must be highly paid for the risks they take. Another factor we must take into consideration is how socially useful a man’s work is, regardless of the talents he may bring to it. Most people would agree that looking after the sick or teaching children is more important than, say, selling secondhand cars or improving the taste of toothpaste by adding a red stripe to it. Yet it is almost certain that the used car salesman earns more than the nurse, and that research chemist earns more than the schoolteacher. Indeed, this whole question of just rewards can be turned on its head. You can argue that a man who does a job which brings him personal satisfaction is already receiving part of his reward in the form of a so-called “psychic wage”, and that it is the man with the boring, repetitive job who needs more money to make up for the soul-destroying monotony of his work. It is significant that that those jobs which are traditionally regarded as “vocations” - nursing, teaching and the Church, for example - continue to be poorly paid, while others, such as those in the world of sport or entertainment, carry financial rewards out of all proportion to their social worth. Although the amount of money that people earn is in reality largely determined by market forces, this should not prevent us from seeking some way to decide what is the right pay for the job. A starting point for such an investigation would be to try to decide the ratio which ought to exist between the highest and the lowest paid. The picture is made more complicate by two factors: firstly by the “social wage”, i.e, the welfare benefits which every citizen receives; and secondly, by the taxation system, which is often used as an instrument of social justice by taxing high incomes at a very high rate indeed. Allowing for these two things, most countries now regard a ratio of 7:1 as socially acceptable. If it is less, the highly-qualified people carrying heavy responsibilities become disillusioned, and might even end up by emigration (the so-called “brain-drain” is an evidence that this can happen). If it is more, the gap between rich and poor will be so great that it will lead social tensions and ultimately to violence. (Adapted from: "How much is job worth? ") The author mentions “brain-drain” as an evidence to show that _____________.

Tiếng Anh Tốt nghiệp THPT

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

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 28 to 34. Very few people in the modem world obtain their food supply by hunting and gathering in the natural environment surrounding their homes. This method of harvesting from nature s provision is the oldest subsistence strategy, and has been practiced for at least two million years. It was, indeed, the only way to obtain food until rudimentary farming and the domestication of animals were introduced about 10,000 years ago. Because hunter-gathers have fared poorly in comparison with their agricultural cousins, their numbers have dwindled, and they have been forced to live in marginal environments such as deserts forests or arctic wasteland. In higher latitudes, the shorter growing season has restricted the availability of plant life. Such conditions have caused a greater independence on hunting, and along the coasts and waterways, on fishing. The abundance of vegetation in the lower latitudes of the tropics, on the other hand, has provided a greater opportunity for gathering a variety of plants. In short, the environmental differences have restricted the diet and have limited possibilities for the development of subsistence societies. Contemporary hunter-gathers may help us understand our prehistoric ancestors. We know from observation of modem hunter- gathers in both Africa and Alaska that society based on hunting and gathering must be very mobile. While the entire community camps in a central location, a smaller party harvests the food within a reasonable distance from the camp. When the food in the area is exhausted, the community moves on to exploit another site. We also notice a seasonal migration on pattern evolving for most hunter gathers, along with a restrict division of labor between sexes. These patterns of behavior may be similar to those practiced by mankind during the Paleolithic Period. When was hunting and gathering introduced?

Tiếng Anh Tốt nghiệp THPT

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ĐỀ CƯƠNG ÔN TẬP HỌC KÌ 2 MÔN: HÓA HỌC - LỚP 10 (P3)

Cho phản ứng hoá học: H2S + 4Cl2 + 4H2O → H2SO4 + 8HCl. Vai trò của H2S trong phản ứng là

Hóa học Lớp 10

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 18)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. Question 49: It was not until after I got home that I realized I had not set the burglar alarm in the office.

Tiếng Anh Tốt nghiệp THPT

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Bộ đề thi thử 2019 Tiếng Anh cực hay có lời giải chi tiết (Đề số 8)

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 2.1 K lượt xem 6 năm trước

Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

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 28 to 34. One of the most difficult questions to answer is how much a job is worth. We naturally expect that a doctor’s salary will be higher than a bus conductor’s wage. But the question becomes much more difficult to answer when we compare, say, a miner with an engineer, or an unskilled man working on an oil-rig in the North Sea with a teacher in a secondary school. What the doctor, the engineer and teacher have is many years of training in order to obtain the necessary qualifications for their professions. We feel instinctively that these skills and these years, when they were studying instead of earning money, should be rewarded. At the same time we recognize that the work of the miner and the oil-rig laborer is both hard and dangerous, and that they must be highly paid for the risks they take. Another factor we must take into consideration is how socially useful a man’s work is, regardless of the talents he may bring to it. Most people would agree that looking after the sick or teaching children is more important than, say, selling secondhand cars or improving the taste of toothpaste by adding a red stripe to it. Yet it is almost certain that the used car salesman earns more than the nurse, and that research chemist earns more than the schoolteacher. Indeed, this whole question of just rewards can be turned on its head. You can argue that a man who does a job which brings him personal satisfaction is already receiving part of his reward in the form of a so-called “psychic wage”, and that it is the man with the boring, repetitive job who needs more money to make up for the soul-destroying monotony of his work. It is significant that that those jobs which are traditionally regarded as “vocations” - nursing, teaching and the Church, for example - continue to be poorly paid, while others, such as those in the world of sport or entertainment, carry financial rewards out of all proportion to their social worth. Although the amount of money that people earn is in reality largely determined by market forces, this should not prevent us from seeking some way to decide what is the right pay for the job. A starting point for such an investigation would be to try to decide the ratio which ought to exist between the highest and the lowest paid. The picture is made more complicate by two factors: firstly by the “social wage”, i.e, the welfare benefits which every citizen receives; and secondly, by the taxation system, which is often used as an instrument of social justice by taxing high incomes at a very high rate indeed. Allowing for these two things, most countries now regard a ratio of 7:1 as socially acceptable. If it is less, the highly-qualified people carrying heavy responsibilities become disillusioned, and might even end up by emigration (the so-called “brain-drain” is an evidence that this can happen). If it is more, the gap between rich and poor will be so great that it will lead social tensions and ultimately to violence. (Adapted from: "How much is job worth? ") It can be inferred from the passage that a man who does a boring, repetitive job _____________.

Tiếng Anh Tốt nghiệp THPT

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 7)

Tiến hành phản ứng khử oxit X thành kim loại bằng khí CO (dư) theo sơ đồ hình vẽ: Oxit X là

Hóa học Tốt nghiệp THPT

Xem chi tiết 627 lượt xem 6 năm trước

20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

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 28 to 34. Very few people in the modem world obtain their food supply by hunting and gathering in the natural environment surrounding their homes. This method of harvesting from nature s provision is the oldest subsistence strategy, and has been practiced for at least two million years. It was, indeed, the only way to obtain food until rudimentary farming and the domestication of animals were introduced about 10,000 years ago. Because hunter-gathers have fared poorly in comparison with their agricultural cousins, their numbers have dwindled, and they have been forced to live in marginal environments such as deserts forests or arctic wasteland. In higher latitudes, the shorter growing season has restricted the availability of plant life. Such conditions have caused a greater independence on hunting, and along the coasts and waterways, on fishing. The abundance of vegetation in the lower latitudes of the tropics, on the other hand, has provided a greater opportunity for gathering a variety of plants. In short, the environmental differences have restricted the diet and have limited possibilities for the development of subsistence societies. Contemporary hunter-gathers may help us understand our prehistoric ancestors. We know from observation of modem hunter- gathers in both Africa and Alaska that society based on hunting and gathering must be very mobile. While the entire community camps in a central location, a smaller party harvests the food within a reasonable distance from the camp. When the food in the area is exhausted, the community moves on to exploit another site. We also notice a seasonal migration on pattern evolving for most hunter gathers, along with a restrict division of labor between sexes. These patterns of behavior may be similar to those practiced by mankind during the Paleolithic Period. The word “abundance” is closest in meaning to _________.

Tiếng Anh Tốt nghiệp THPT

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 18)

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. Question 48: He expected us to offer him the job.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 7.6 K lượt xem 6 năm trước

Tổng hợp chuyên đề ôn tập Sinh Học cực hay có lời giải chi tiết (Đề số 2)

Trong số các bệnh, tật và hội chứng sau đây ở người, có bao nhiêu bệnh, tật và hội chứng không liên quan đến đột biến số lượng nhiễm sắc thể? (1) Bệnh máu khó đông. (2) Bệnh ung thư máu. (3) Bệnh pheninketo niệu. (4) Hội chứng Đao. (5) Hội chứng Claiphenter. (6) Tật dính ngón tay số 2 và số 3. (7) Hội chứng Tơcner. (8) Bệnh bạch tạng.

Sinh học Tốt nghiệp THPT

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ĐỀ CƯƠNG ÔN TẬP HỌC KÌ 2 MÔN: HÓA HỌC - LỚP 10 (P3)

Trường hợp không xảy ra phản ứng hóa học là

Hóa học Lớp 10

Xem chi tiết 4.8 K lượt xem 6 năm trước

Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

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 28 to 34. One of the most difficult questions to answer is how much a job is worth. We naturally expect that a doctor’s salary will be higher than a bus conductor’s wage. But the question becomes much more difficult to answer when we compare, say, a miner with an engineer, or an unskilled man working on an oil-rig in the North Sea with a teacher in a secondary school. What the doctor, the engineer and teacher have is many years of training in order to obtain the necessary qualifications for their professions. We feel instinctively that these skills and these years, when they were studying instead of earning money, should be rewarded. At the same time we recognize that the work of the miner and the oil-rig laborer is both hard and dangerous, and that they must be highly paid for the risks they take. Another factor we must take into consideration is how socially useful a man’s work is, regardless of the talents he may bring to it. Most people would agree that looking after the sick or teaching children is more important than, say, selling secondhand cars or improving the taste of toothpaste by adding a red stripe to it. Yet it is almost certain that the used car salesman earns more than the nurse, and that research chemist earns more than the schoolteacher. Indeed, this whole question of just rewards can be turned on its head. You can argue that a man who does a job which brings him personal satisfaction is already receiving part of his reward in the form of a so-called “psychic wage”, and that it is the man with the boring, repetitive job who needs more money to make up for the soul-destroying monotony of his work. It is significant that that those jobs which are traditionally regarded as “vocations” - nursing, teaching and the Church, for example - continue to be poorly paid, while others, such as those in the world of sport or entertainment, carry financial rewards out of all proportion to their social worth. Although the amount of money that people earn is in reality largely determined by market forces, this should not prevent us from seeking some way to decide what is the right pay for the job. A starting point for such an investigation would be to try to decide the ratio which ought to exist between the highest and the lowest paid. The picture is made more complicate by two factors: firstly by the “social wage”, i.e, the welfare benefits which every citizen receives; and secondly, by the taxation system, which is often used as an instrument of social justice by taxing high incomes at a very high rate indeed. Allowing for these two things, most countries now regard a ratio of 7:1 as socially acceptable. If it is less, the highly-qualified people carrying heavy responsibilities become disillusioned, and might even end up by emigration (the so-called “brain-drain” is an evidence that this can happen). If it is more, the gap between rich and poor will be so great that it will lead social tensions and ultimately to violence. (Adapted from: "How much is job worth? ") The argument of the “psychic wage” is used to explain why _____________.

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 2.2 K lượt xem 6 năm trước

20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

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 28 to 34. Very few people in the modem world obtain their food supply by hunting and gathering in the natural environment surrounding their homes. This method of harvesting from nature s provision is the oldest subsistence strategy, and has been practiced for at least two million years. It was, indeed, the only way to obtain food until rudimentary farming and the domestication of animals were introduced about 10,000 years ago. Because hunter-gathers have fared poorly in comparison with their agricultural cousins, their numbers have dwindled, and they have been forced to live in marginal environments such as deserts forests or arctic wasteland. In higher latitudes, the shorter growing season has restricted the availability of plant life. Such conditions have caused a greater independence on hunting, and along the coasts and waterways, on fishing. The abundance of vegetation in the lower latitudes of the tropics, on the other hand, has provided a greater opportunity for gathering a variety of plants. In short, the environmental differences have restricted the diet and have limited possibilities for the development of subsistence societies. Contemporary hunter-gathers may help us understand our prehistoric ancestors. We know from observation of modem hunter- gathers in both Africa and Alaska that society based on hunting and gathering must be very mobile. While the entire community camps in a central location, a smaller party harvests the food within a reasonable distance from the camp. When the food in the area is exhausted, the community moves on to exploit another site. We also notice a seasonal migration on pattern evolving for most hunter gathers, along with a restrict division of labor between sexes. These patterns of behavior may be similar to those practiced by mankind during the Paleolithic Period. The word “rudimentary” is closest in meaning to _________.

Tiếng Anh Tốt nghiệp THPT

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 7)

Cho X, Y, Z, M là các kim loại. Thực hiện các thí nghiệm sau: Thí nghiệm 1 M + dung dịch muối X kết tủa + khí Thí nghiệm 2 X + dung dịch muối Y Y Thí nghiệm 3 X + dung dịch muối Z: không xảy ra phản ứng Thí nghiệm 4 Z + dung dịch muối M: không xảy ra phản ứng Chiều tăng dần tính khử của các kim loại X, Y, Z, M là

Hóa học Tốt nghiệp THPT

Xem chi tiết 717 lượt xem 6 năm trước

Tổng hợp chuyên đề ôn tập Sinh Học cực hay có lời giải chi tiết (Đề số 2)

Cho các phát biểu sau về mối quan hệ giữa nước và quang hợp I. Thoát hơi nước ảnh hưởng đến sự đóng mở khí khổng. Do đó ảnh hưởng đến lượng CO2 đi vào lục lạp. II. Nước ảnh hưởng tới sự đóng mở khí khổng. Do đó ảnh hưởng đến lượng CO2 đi vào lục lạp. III. Nước ảnh hưởng tới tốc độ sinh trưởng nên ảnh hưởng tới kích thước bộ lá. IV. Nước trong tế bào ảnh hưởng đến độ hydrat hóa của chất nguyên sinh nên ảnh hưởng đến hoạt động các enzim quang hợp. V. Nước là nguyên liệu trực tiếp cung cấp cho quá trình quang hợp. VI. Thoát hơi nước điều nhiệt cho lá, do vậy đã ảnh hưởng đến quang hợp. Số phương án đúng là

Sinh học Tốt nghiệp THPT

Xem chi tiết 311 lượt xem 6 năm trước

20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

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 28 to 34. Very few people in the modem world obtain their food supply by hunting and gathering in the natural environment surrounding their homes. This method of harvesting from nature s provision is the oldest subsistence strategy, and has been practiced for at least two million years. It was, indeed, the only way to obtain food until rudimentary farming and the domestication of animals were introduced about 10,000 years ago. Because hunter-gathers have fared poorly in comparison with their agricultural cousins, their numbers have dwindled, and they have been forced to live in marginal environments such as deserts forests or arctic wasteland. In higher latitudes, the shorter growing season has restricted the availability of plant life. Such conditions have caused a greater independence on hunting, and along the coasts and waterways, on fishing. The abundance of vegetation in the lower latitudes of the tropics, on the other hand, has provided a greater opportunity for gathering a variety of plants. In short, the environmental differences have restricted the diet and have limited possibilities for the development of subsistence societies. Contemporary hunter-gathers may help us understand our prehistoric ancestors. We know from observation of modem hunter- gathers in both Africa and Alaska that society based on hunting and gathering must be very mobile. While the entire community camps in a central location, a smaller party harvests the food within a reasonable distance from the camp. When the food in the area is exhausted, the community moves on to exploit another site. We also notice a seasonal migration on pattern evolving for most hunter gathers, along with a restrict division of labor between sexes. These patterns of behavior may be similar to those practiced by mankind during the Paleolithic Period. With which of the following topics is the passage primarily concerned?

Tiếng Anh Tốt nghiệp THPT

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 18)

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. Question 47: "Please send me to a warm climate" Tom said.

Tiếng Anh Tốt nghiệp THPT

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 7)

Tiến hành thi nghiệm với các chất X, Y, z, T. Kết quả được ghi ở bảng sau: Mẫu thử Thí nghiệm Hiện tượng X Tác dụng với Cu(OH)2 Hợp chất có màu tím Y Quỳ tím ẩm Quỳ đổi màu xanh Z Tác dụng với dung dịch Br2 Dung dịch mất màu và tạo kết tủa trắng T Tác dụng với dung dịch Br2 Dung dịch mất màu Các chất X, Y, Z, T lần lượt là

Hóa học Tốt nghiệp THPT

Xem chi tiết 505 lượt xem 6 năm trước

ĐỀ CƯƠNG ÔN TẬP HỌC KÌ 2 MÔN: HÓA HỌC - LỚP 10 (P3)

Phản ứng nào sau đây không xảy ra?

Hóa học Lớp 10

Xem chi tiết 15.4 K lượt xem 6 năm trước

Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

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 28 to 34. One of the most difficult questions to answer is how much a job is worth. We naturally expect that a doctor’s salary will be higher than a bus conductor’s wage. But the question becomes much more difficult to answer when we compare, say, a miner with an engineer, or an unskilled man working on an oil-rig in the North Sea with a teacher in a secondary school. What the doctor, the engineer and teacher have is many years of training in order to obtain the necessary qualifications for their professions. We feel instinctively that these skills and these years, when they were studying instead of earning money, should be rewarded. At the same time we recognize that the work of the miner and the oil-rig laborer is both hard and dangerous, and that they must be highly paid for the risks they take. Another factor we must take into consideration is how socially useful a man’s work is, regardless of the talents he may bring to it. Most people would agree that looking after the sick or teaching children is more important than, say, selling secondhand cars or improving the taste of toothpaste by adding a red stripe to it. Yet it is almost certain that the used car salesman earns more than the nurse, and that research chemist earns more than the schoolteacher. Indeed, this whole question of just rewards can be turned on its head. You can argue that a man who does a job which brings him personal satisfaction is already receiving part of his reward in the form of a so-called “psychic wage”, and that it is the man with the boring, repetitive job who needs more money to make up for the soul-destroying monotony of his work. It is significant that that those jobs which are traditionally regarded as “vocations” - nursing, teaching and the Church, for example - continue to be poorly paid, while others, such as those in the world of sport or entertainment, carry financial rewards out of all proportion to their social worth. Although the amount of money that people earn is in reality largely determined by market forces, this should not prevent us from seeking some way to decide what is the right pay for the job. A starting point for such an investigation would be to try to decide the ratio which ought to exist between the highest and the lowest paid. The picture is made more complicate by two factors: firstly by the “social wage”, i.e, the welfare benefits which every citizen receives; and secondly, by the taxation system, which is often used as an instrument of social justice by taxing high incomes at a very high rate indeed. Allowing for these two things, most countries now regard a ratio of 7:1 as socially acceptable. If it is less, the highly-qualified people carrying heavy responsibilities become disillusioned, and might even end up by emigration (the so-called “brain-drain” is an evidence that this can happen). If it is more, the gap between rich and poor will be so great that it will lead social tensions and ultimately to violence. (Adapted from: "How much is job worth? ") The word “disillusioned” in the passage is closest in meaning to _____________.

Tiếng Anh Tốt nghiệp THPT

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. No one can know when sports began. Since it is impossible to imagine a time when children did not spontaneously run races or wrestle, it is clear that children have always included sports in their play, but one can only speculate about the (23) _______of sports as autotelic physical contests for adults. Hunters are depicted in prehistoric art, but it cannot be known (24) _ the hunters pursued their prey in a mood of grim necessity or with the joyful abandon of sportsmen. It is certain, (25) _______, from the rich literary and iconographic evidence of all ancient civilizations that hunting soon became an end in itself at least for royalty and nobility. Archaeological evidence also indicates that ball games were common among ancient peoples as different as the Chinese and the like those recommended for health by the Greek physician Galen in the 2nd century AD. Điền vào số (27)

Tiếng Anh Tốt nghiệp THPT

Xem chi tiết 3 K lượt xem 6 năm trước

Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 18)

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.Question 46: The car was very expensive and he couldn't afford it.

Tiếng Anh Tốt nghiệp THPT

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

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 28 to 34. One of the most difficult questions to answer is how much a job is worth. We naturally expect that a doctor’s salary will be higher than a bus conductor’s wage. But the question becomes much more difficult to answer when we compare, say, a miner with an engineer, or an unskilled man working on an oil-rig in the North Sea with a teacher in a secondary school. What the doctor, the engineer and teacher have is many years of training in order to obtain the necessary qualifications for their professions. We feel instinctively that these skills and these years, when they were studying instead of earning money, should be rewarded. At the same time we recognize that the work of the miner and the oil-rig laborer is both hard and dangerous, and that they must be highly paid for the risks they take. Another factor we must take into consideration is how socially useful a man’s work is, regardless of the talents he may bring to it. Most people would agree that looking after the sick or teaching children is more important than, say, selling secondhand cars or improving the taste of toothpaste by adding a red stripe to it. Yet it is almost certain that the used car salesman earns more than the nurse, and that research chemist earns more than the schoolteacher. Indeed, this whole question of just rewards can be turned on its head. You can argue that a man who does a job which brings him personal satisfaction is already receiving part of his reward in the form of a so-called “psychic wage”, and that it is the man with the boring, repetitive job who needs more money to make up for the soul-destroying monotony of his work. It is significant that that those jobs which are traditionally regarded as “vocations” - nursing, teaching and the Church, for example - continue to be poorly paid, while others, such as those in the world of sport or entertainment, carry financial rewards out of all proportion to their social worth. Although the amount of money that people earn is in reality largely determined by market forces, this should not prevent us from seeking some way to decide what is the right pay for the job. A starting point for such an investigation would be to try to decide the ratio which ought to exist between the highest and the lowest paid. The picture is made more complicate by two factors: firstly by the “social wage”, i.e, the welfare benefits which every citizen receives; and secondly, by the taxation system, which is often used as an instrument of social justice by taxing high incomes at a very high rate indeed. Allowing for these two things, most countries now regard a ratio of 7:1 as socially acceptable. If it is less, the highly-qualified people carrying heavy responsibilities become disillusioned, and might even end up by emigration (the so-called “brain-drain” is an evidence that this can happen). If it is more, the gap between rich and poor will be so great that it will lead social tensions and ultimately to violence. (Adapted from: "How much is job worth? ") As far as rewarding people for their work is concerned, the writer, believes that ________.

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Chuyên đề ôn thi THPTQG môn Hóa Học cực hay có đáp án (Chuyên đề 10)

Thủy phân hết 0,05 mol hỗn hợp E gồm hai peptit mạch hở X (CxHyOzN3) và Y (CnHmO6Nt), thu được hỗn hợp gồm 0,07 mol glyxin và 0,12 mol alanin. Mặt khác, thủy phân hoàn toàn 0,1 mol Y trong dung dịch HCl dư, thu được m gam hỗn hợp muối. Giá trị của m là

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. No one can know when sports began. Since it is impossible to imagine a time when children did not spontaneously run races or wrestle, it is clear that children have always included sports in their play, but one can only speculate about the (23) _______of sports as autotelic physical contests for adults. Hunters are depicted in prehistoric art, but it cannot be known (24) _ the hunters pursued their prey in a mood of grim necessity or with the joyful abandon of sportsmen. It is certain, (25) _______, from the rich literary and iconographic evidence of all ancient civilizations that hunting soon became an end in itself at least for royalty and nobility. Archaeological evidence also indicates that ball games were common among ancient peoples as different as the Chinese and the like those recommended for health by the Greek physician Galen in the 2nd century AD. Điền vào số (26)

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Bài 19: Mối quan hệ giữa gen và tính trạng

Nêu bản chất của mối quan hệ giữa gen và tính trạng qua sơ đồ:

Sinh học Lớp 9

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

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 28 to 34. One of the most difficult questions to answer is how much a job is worth. We naturally expect that a doctor’s salary will be higher than a bus conductor’s wage. But the question becomes much more difficult to answer when we compare, say, a miner with an engineer, or an unskilled man working on an oil-rig in the North Sea with a teacher in a secondary school. What the doctor, the engineer and teacher have is many years of training in order to obtain the necessary qualifications for their professions. We feel instinctively that these skills and these years, when they were studying instead of earning money, should be rewarded. At the same time we recognize that the work of the miner and the oil-rig laborer is both hard and dangerous, and that they must be highly paid for the risks they take. Another factor we must take into consideration is how socially useful a man’s work is, regardless of the talents he may bring to it. Most people would agree that looking after the sick or teaching children is more important than, say, selling secondhand cars or improving the taste of toothpaste by adding a red stripe to it. Yet it is almost certain that the used car salesman earns more than the nurse, and that research chemist earns more than the schoolteacher. Indeed, this whole question of just rewards can be turned on its head. You can argue that a man who does a job which brings him personal satisfaction is already receiving part of his reward in the form of a so-called “psychic wage”, and that it is the man with the boring, repetitive job who needs more money to make up for the soul-destroying monotony of his work. It is significant that that those jobs which are traditionally regarded as “vocations” - nursing, teaching and the Church, for example - continue to be poorly paid, while others, such as those in the world of sport or entertainment, carry financial rewards out of all proportion to their social worth. Although the amount of money that people earn is in reality largely determined by market forces, this should not prevent us from seeking some way to decide what is the right pay for the job. A starting point for such an investigation would be to try to decide the ratio which ought to exist between the highest and the lowest paid. The picture is made more complicate by two factors: firstly by the “social wage”, i.e, the welfare benefits which every citizen receives; and secondly, by the taxation system, which is often used as an instrument of social justice by taxing high incomes at a very high rate indeed. Allowing for these two things, most countries now regard a ratio of 7:1 as socially acceptable. If it is less, the highly-qualified people carrying heavy responsibilities become disillusioned, and might even end up by emigration (the so-called “brain-drain” is an evidence that this can happen). If it is more, the gap between rich and poor will be so great that it will lead social tensions and ultimately to violence. (Adapted from: "How much is job worth? ") According to the passage, the professional man, such as the doctor, should be well paid because _____________.

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 18)

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.Question 45: Statistics are now compulsory for all students taking a course in engineering.

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Bài 19: Mối quan hệ giữa gen và tính trạng

Nguyên tắc bổ sung được biểu hiện trong mối quan hệ ở sơ đồ dưới đây như thế nào?

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. No one can know when sports began. Since it is impossible to imagine a time when children did not spontaneously run races or wrestle, it is clear that children have always included sports in their play, but one can only speculate about the (23) _______of sports as autotelic physical contests for adults. Hunters are depicted in prehistoric art, but it cannot be known (24) _ the hunters pursued their prey in a mood of grim necessity or with the joyful abandon of sportsmen. It is certain, (25) _______, from the rich literary and iconographic evidence of all ancient civilizations that hunting soon became an end in itself at least for royalty and nobility. Archaeological evidence also indicates that ball games were common among ancient peoples as different as the Chinese and the like those recommended for health by the Greek physician Galen in the 2nd century AD. Điền vào số (25)

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Bài 19: Mối quan hệ giữa gen và tính trạng

Nêu mối quan hệ giữa gen và ARN, giữa ARN và prôtêin.

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Bài 19: Mối quan hệ giữa gen và tính trạng

Gen ( một đoạn của ADN) (1) mARN (2) Protein (3) Tính trạng Từ sơ đồ trên, hãy giải thích : - Mối liên hệ giữa các thành phần trong sơ đồ theo trật tự 1,2,3 - Bản chất của mối liên hệ trong sơ đồ.

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. My first job was a sales assistant at a large department store. I wanted to work part-time, because I was still studying at university and I was only able to work a few nights a week. I came across the advertisement in the local newspaper. I remember the interview as though it were yesterday. The (23) _______ manager sat behind a large desk. He asked me various questions which surprised me because all I wanted was to work in sales. An hours later, I was told that I had got the job and was given a contract to go over. I was to be trained for ten days before I took my post Also, as a member of staff, I was (24) _ to some benefits, including discounts. When I eventually started, I was responsible (25) _ the toy section. I really enjoyed it there and I loved demonstrating the different toys. I was surprised at how friendly my colleagues were, too. They made working there fun even when we had to deal with customers (26) _ got on our nerves. (27) _______ , working there was a great experience which I will never forget. Điền vào ô 27

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Bài 19: Mối quan hệ giữa gen và tính trạng

Quan sát hình 19.1 và trả lời các câu hỏi sau: - Các loại Nucleotit nào ở mARN và tARN liên kết với nhau? - Tương quan về số lượng giữa a.a và nucleotit của mARN khi ở trong ribôxôm?

Sinh học Lớp 9

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. No one can know when sports began. Since it is impossible to imagine a time when children did not spontaneously run races or wrestle, it is clear that children have always included sports in their play, but one can only speculate about the (23) _______of sports as autotelic physical contests for adults. Hunters are depicted in prehistoric art, but it cannot be known (24) _ the hunters pursued their prey in a mood of grim necessity or with the joyful abandon of sportsmen. It is certain, (25) _______, from the rich literary and iconographic evidence of all ancient civilizations that hunting soon became an end in itself at least for royalty and nobility. Archaeological evidence also indicates that ball games were common among ancient peoples as different as the Chinese and the like those recommended for health by the Greek physician Galen in the 2nd century AD. Điền vào số (24)

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Bộ đề luyện thi THPTQG Sinh học cực hay có lời giải chi tiết (đề số 26)

Nhân tố sinh thái nào sau đây là nhân tố vô sinh?

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230 Bài tập thí nghiệm Hóa Học cực hay có đáp án(Đề số 6)

Tiến hành các thí nghiệm sau: (a) Cho dung dịch chứa 3a mol NaOH vào dung dịch chứa a mol AlCl3. (b) Cho a mol Fe3O4 vào dung dịch chứa 5a mol H2SO4 loãng. (c) Cho khí CO2 đến dư vào dung dịch Ca(OH)2. (d) Cho Cu vào dung dịch Fe2(SO4)3 dư. (e) Cho dung dịch chứa a mol KHSO4 vào dung dịch chứa a mol NaHCO3. (g) Cho Al vào dung dịch HNO3 dư (phản ứng thu được chất khử duy nhất là khí NO). Sau khi các phản ứng xảy ra hoàn toàn, số thí nghiệm thu được dung dịch chứa 2 muối là:

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Bài 19: Mối quan hệ giữa gen và tính trạng

Hãy cho biết cấu trúc trung gian và vai trò của nó trong mối quan hệ giữa gen và protein?

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. My first job was a sales assistant at a large department store. I wanted to work part-time, because I was still studying at university and I was only able to work a few nights a week. I came across the advertisement in the local newspaper. I remember the interview as though it were yesterday. The (23) _______ manager sat behind a large desk. He asked me various questions which surprised me because all I wanted was to work in sales. An hours later, I was told that I had got the job and was given a contract to go over. I was to be trained for ten days before I took my post Also, as a member of staff, I was (24) _ to some benefits, including discounts. When I eventually started, I was responsible (25) _ the toy section. I really enjoyed it there and I loved demonstrating the different toys. I was surprised at how friendly my colleagues were, too. They made working there fun even when we had to deal with customers (26) _ got on our nerves. (27) _______ , working there was a great experience which I will never forget. Điền vào ô 26

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 18)

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. Question 44: Hardly I had got onto the motorway when I saw two police cars following me.

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Bài 18: Prôtêin

Prôtêin thực hiện được chức năng của mình chủ yếu ở những bậc cấu trúc nào sau đây? a) Cấu trúc bậc 1 b) Cấu trúc bậc 1 và 2 c) Cấu trúc bậc 2 và 3 d) Cấu trúc bậc 3 và 4

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20 Đề thi thử THPTQG môn Tiếng Anh cực hay có đáp án (Đề số 20)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. No one can know when sports began. Since it is impossible to imagine a time when children did not spontaneously run races or wrestle, it is clear that children have always included sports in their play, but one can only speculate about the (23) _______of sports as autotelic physical contests for adults. Hunters are depicted in prehistoric art, but it cannot be known (24) _ the hunters pursued their prey in a mood of grim necessity or with the joyful abandon of sportsmen. It is certain, (25) _______, from the rich literary and iconographic evidence of all ancient civilizations that hunting soon became an end in itself at least for royalty and nobility. Archaeological evidence also indicates that ball games were common among ancient peoples as different as the Chinese and the like those recommended for health by the Greek physician Galen in the 2nd century AD. Điền vào số (23)

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Đề thi thử thpt quốc gia 2019 môn tiếng anh (Đề số 16)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. My first job was a sales assistant at a large department store. I wanted to work part-time, because I was still studying at university and I was only able to work a few nights a week. I came across the advertisement in the local newspaper. I remember the interview as though it were yesterday. The (23) _______ manager sat behind a large desk. He asked me various questions which surprised me because all I wanted was to work in sales. An hours later, I was told that I had got the job and was given a contract to go over. I was to be trained for ten days before I took my post Also, as a member of staff, I was (24) _ to some benefits, including discounts. When I eventually started, I was responsible (25) _ the toy section. I really enjoyed it there and I loved demonstrating the different toys. I was surprised at how friendly my colleagues were, too. They made working there fun even when we had to deal with customers (26) _ got on our nerves. (27) _______ , working there was a great experience which I will never forget. Điền vào ô 25

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Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 18)

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. Question 43: Bill was very young when they left, and he could not longer remember living in the house

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Bài 18: Prôtêin

Bậc cấu trúc nào sau đây có vai trò chủ yếu xác định tính đặc thù của prôtêin? a) Cấu trúc bậc 1 b) Cấu trúc bậc 2 c) Cấu trúc bậc 3 d) Cấu trúc bậc 4

Sinh học Lớp 9

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Bài 18: Prôtêin

Vì sao nói prôtêin có vai trò quan trọng đối với tế bào và cơ thể?

Sinh học Lớp 9

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Bài 18: Prôtêin

Tính đa dạng và tính đặc thù của prôtêin do những yếu tố nào xác định?

Sinh học Lớp 9

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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

HSA

TSA

SPT

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

Văn

Tiếng Anh

Vật lí

Hóa học

Sinh học

Lịch sử

Địa lí

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Văn

Tiếng Anh

Vật lí

Hóa học

Sinh học

Lịch sử

Địa lí

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Văn

Tiếng Anh

Vật lý

Hóa học

Sinh học

Lịch sử

Địa lí

Giáo dục Kinh tế và Pháp luật

Tin học

Công nghệ

Toán

Văn

Tiếng Anh

Vật lý

Hóa học

Sinh học

Khoa học tự nhiên

Tin học

Lịch sử

Địa lí

Toán

Văn

Tiếng Anh