* Read the following passage and mark the letter A, R, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30. People have been donating blood since the e...

LQ

Lê Quỳnh Anh

25 tháng 5 2019

* Read the following passage and mark the letter A, R, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30. People have been donating blood since the early twentieth century to help accident victims and patients undergoing surgical procedures. Usually a pint of whole blood is donated, and it is then divided into platelets, white blood cells, and red blood cells. People can donate blood (for red blood cells) about once every two months. ...

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* Read the following passage and mark the letter A, R, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.

People have been donating blood since the early twentieth century to help accident victims and patients undergoing surgical procedures. Usually a pint of whole blood is donated, and it is then divided into platelets, white blood cells, and red blood cells. People can donate blood (for red blood cells) about once every two months.

Transfusing the blood from the donor to the recipient is straightforward. It involves taking the blood from a donor’s arm vein by means of a hypodermic syringe. The blood flows down from the container by gravity. This is a slow process and may last as long as 2 hours to complete the infusion of blood into the recipient. The patient is protected from being infected during the transfusion. Only sterile containers, tubing, and needles are used, and this helps ensure that transfused or stored blood is not exposed to disease causing bacteria.

Negative reactions to transfusions are not unusual. The recipient may suffer an allergic reaction or be sensitive to donor leukocytes. Some may suffer from an undetected red cell incompatibility. Unexplained reactions are also fairly common. Although they are rare, other causes of such negative reactions include contaminated blood, air bubbles in the blood, overloading of the circulatory system through administration of excess blood, or sensitivity to donor plasma or platelets.

Today, hospitals and blood banks go to great lengths to screen all blood donors and their blood. All donated blood is routinely and rigorously tested for diseases, such as HIV, hepatitis B, and syphilis. When the recipient is a newborn or an infant, the blood is usually irradiated to eliminate harmful elements. Donated blood is washed, and the white blood cells and platelets removed.

Storing the blood sometimes requires a freezing process. To freeze the red blood cells, a glycerol solution is added. To unfreeze the, the glycerolis removed. The ability to store blood for long periods has been a boon to human health.

According to the passage, how often can people donate blood for red blood cells?

A. Every four months

B. Every three month

C. Every two months

D. Every month

#Mẫu giáo

1

DH

Dương Hoàn Anh

25 tháng 5 2019

Theo như đoạn văn, bao lâu người ta có thể hiến máu cho hồng cầu?

Đáp án C: 2 tháng 1 lần

Các đáp án còn lại:

A. 4 tháng 1 lần B. 3 tháng 1 lần D. hàng tháng

Thông tin trong bài:

People can donate blood (for red blood cells) about once every two months.

Người ta có thể hiến máu (tế bào hồng cầu) khoảng 2 tháng một lần.

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DM

Dương Minh

26 tháng 9 2019

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.Which of the following can be inferred from the passage? A. Animal and plant species which pose threats to humans will die out soon. B. Saving popular animal and plant species should be given a high priority. C. Humans will make changes in their lifestyles to save other species. D. The dilemma humans face between maintaining their lives and saving other...

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#Tiếng anh lớp 9

1

NH

Nguyen Hoang Hai

26 tháng 9 2019

Đáp án: D

Giải thích: Mấu chốt của câu này là các em phải đọc hết đoạn cuối để suy ra cái mà tác giả muốn hướng tới: Con người phải đối mặt với sự lựa chọn khó khăn: sự sống của mình hay cứu lấy động vật.

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VN

Vương Ngọc Ánh

16 tháng 4 2022

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 22 to 26A. Read the passage carefully, then choose the correct answer.The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the...

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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 22 to 26

A. Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil B. contamination of soil

C. reduction of nutrients D. loss of water supply

#Tiếng anh lớp 11

2

PV

Phạm Vĩnh Linh

16 tháng 4 2022

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 22 to 26

A. Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil B. contamination of soil

C. reduction of nutrients D. loss of water supply

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E

ERROR

16 tháng 4 2022

22-b 23-d 24-a 25-b 26-d 27-b

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LQ

Lê Quỳnh Anh

25 tháng 8 2018

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 36 to 40.What is the main idea of the passage? A. Human ancestors became predominantly right-handed when they began to use tools. B. It is difficult to interpret the significance of anthropological evidence concerning tool use. C. Humans and their ancestors have been predominantly right-handed for over a million years. D. Human ancestors were more...

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#Tiếng anh thí điểm lớp 10

1

DH

Dương Hoàn Anh

25 tháng 8 2018

Đáp án: C

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LQ

Lê Quỳnh Anh

7 tháng 10 2019

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 36 to 40.What is the main idea of the passage? A. outline B. hand C. wall...

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#Tiếng anh thí điểm lớp 10

1

DH

Dương Hoàn Anh

7 tháng 10 2019

Đáp án: B

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LQ

Lê Quỳnh Anh

25 tháng 2 2018

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.The people of Western Canada have been considering_________themselves from the rest of the provinces. A. separating B. separated C. to separate...

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#Mẫu giáo

1

DH

Dương Hoàn Anh

25 tháng 2 2018

Với động từ “consider” có hai cấu trúc: To consider + Sb + to be : coi ai là... và To consider Ving: xem xét việc gì . Trong trường hợp này chúng ta chọn V-ing => Đáp án là A.

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LQ

Lê Quỳnh Anh

28 tháng 8 2018

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Ever since we quarreled in the office, Janice and I have been ____________ enemies.

A. assured

B. sworn

C. defined

D. guaranteed

#Mẫu giáo

1

DH

Dương Hoàn Anh

28 tháng 8 2018

Đáp án B

Giải thích: Trong Tiếng Anh, không phải tất các từ có nghĩa tương tự nhau đều có thể kết hợp cùng một từ khác, mà chỉ có một số từ nhất định là có thể đi cùng nhau. Đó gọi là collocation (kết hợp từ).

Từ enemy chỉ có thể kết hợp với từ sworn, các từ ở 3 phương án còn lại không thể kết hợp cùng.

Sworn enemies = kẻ thù tuyên thệ, hai bên đều thề là kẻ thù của nhau, quyết tâm không trở lại thành bạn bè nữa.

Dịch nghĩa: Kể từ khi chúng tôi cãi nhau trong văn phòng, Janice và tôi đã là kẻ thù tuyên thệ của nhau.

A. assured(adj) = chắc chắn, được bảo đảm

C. defined (adj) = được định nghĩa

D. guaranteed (adj) = được bảo đảm

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LQ

Lê Quỳnh Anh

17 tháng 8 2018

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 43 to 50. What is the main idea of the last paragraph? A. Gerontologists have controlled the process of aging. B. Gerontologists are working hard to help people live longer and more healthily. C. Gerontologists are trying to give people an eternal life. D. Gerontologists are now able to slow down the process of...

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#Mẫu giáo

1

DH

Dương Hoàn Anh

17 tháng 8 2018

Đáp án B

Kiến thức: Đọc hiểu

Giải thích:

Ý chính của đoạn cuối cùng là gì?

A. Các nhà khoa học nghiên cứu về lão hóa đã kiểm soát quá trình lão hóa.

B. Các nhà khoa học nghiên cứu về lão hóa đang làm việc chăm chỉ để giúp mọi người sống lâu hơn và khỏe mạnh hơn.

C. Các nhà khoa học nghiên cứu về lão hóa đang cố gắng mang lại cho con người một cuộc sống vĩnh cửu.

D. Các nhà khoa học nghiên cứu về lão hóa hiện có thể làm chậm quá trình lão hóa.

Thông tin: They are trying to discover how this clock works so that they can slow down the process. This could give man a longer life and a great number of productive years.

Tạm dịch: Họ đang nỗ lực tìm ra cách mà chiếc đồng hồ này hoạt động để có thể làm chậm đi quá trình này. Điều này có thể giúp cho con người sống lâu hơn và có được những năm tháng đóng góp nhiều hơn.

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DM

Dương Minh

5 tháng 10 2017

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.Which of the following can result from the loss of one species in a food chain? A. The connections among the creatures in the food chain become closer. B. Larger predators will look for other types of prey. C. There might be a lack of food resources for some other species. D. Animals will shift to another food chain in the...

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#Tiếng anh lớp 9

1

NH

Nguyen Hoang Hai

5 tháng 10 2017

Đáp án: C

Giải thích: Dẫn chứng nằm ở 2 dòng cuối của đoạn 1.

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S

should

28 tháng 10 2021

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 Stress isn’t just a problem for adults. Young people, however, are also suffering from stress with different causes. Below are some factors that contribute to teenagers’ unhealthy levels of stress. School Pressure: Teenagers often feel stressed because of studying. Students may be under pressure to complete daily homework, finish projects and study for...

Đọc tiếp

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

Stress isn’t just a problem for adults. Young people, however, are also suffering from stress with different causes. Below are some factors that contribute to teenagers’ unhealthy levels of stress.

School Pressure: Teenagers often feel stressed because of studying. Students may be under pressure to complete daily homework, finish projects and study for exams. In addition, teens may also want to participate in extracurricular activities, such as sports and clubs. The added pastimes may contribute to teenagers’ stress and anxiety if the activities are competitive and students have no relaxation time.

Peer Pressure: Although teenagers may have a group of close friends, their peers may force them to hang out instead of studying and that goes against their family rules. Peer pressure, bullying at school may affect teenagers’ studying, and lead them to feel more stressful and frustrated.

Family Problems: Teenagers can also feel tense at home because of family pressure and problems. Arguments with brothers or sisters, disagreements with parents over rules and family expectations may also cause teenagers’ stress.

According to the writer, “School Pressure” may happen when _______

A.

teenagers want to hang out with friends.

B.

teenagers argue with members in their family.

C.

teenagers don’t follow family rules.

D.

teenagers have to complete daily homework.

29

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

Stress isn’t just a problem for adults. Young people, however, are also suffering from stress with different causes. Below are some factors that contribute to teenagers’ unhealthy levels of stress.

School Pressure: Teenagers often feel stressed because of studying. Students may be under pressure to complete daily homework, finish projects and study for exams. In addition, teens may also want to participate in extracurricular activities, such as sports and clubs. The added pastimes may contribute to teenagers’ stress and anxiety if the activities are competitive and students have no relaxation time.

Peer Pressure: Although teenagers may have a group of close friends, their peers may force them to hang out instead of studying and that goes against their family rules. Peer pressure, bullying at school may affect teenagers’ studying, and lead them to feel more stressful and frustrated.

Family Problems: Teenagers can also feel tense at home because of family pressure and problems. Arguments with brothers or sisters, disagreements with parents over rules and family expectations may also cause teenagers’ stress.

Which statement is NOT TRUE?

A.

Bullying at school can affect teenagers’ studying.

B.

Family expectations may lead to teenagers’ stress.

C.

Stress is only the problem for adults.

D.

Students may be under pressure when joining competitive activities.

#Tiếng anh lớp 9

1

MN

minh nguyet

28 tháng 10 2021

According to the writer, “School Pressure” may happen when _______

A.

teenagers want to hang out with friends.

B.

teenagers argue with members in their family.

C.

teenagers don’t follow family rules.

D.

teenagers have to complete daily homework.

Which statement is NOT TRUE?

A.

Bullying at school can affect teenagers’ studying.

B.

Family expectations may lead to teenagers’ stress.

C.

Stress is only the problem for adults.

D.

Students may be under pressure when joining competitive activities.

Đúng(2)

DM

Dương Minh

7 tháng 4 2018

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.According to the passage, which of the following statements is NOT true? A. Humans have difficult choices to make about saving endangered species. B. The existence of humans is at the expense of some other species. C. No other species can threaten the survival of humans on Earth. D. Some animals and plants cannot survive without human...

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#Tiếng anh lớp 9

1

NH

Nguyen Hoang Hai

7 tháng 4 2018

Đáp án: C

Giải thích: Chúng ta thấy câu C sai luôn khi đọc đến dòng 4, dòng 5 của đoạn 2.

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