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Câu hỏi:

27/08/2021 242

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 42.

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 through a plastic tube to a collection bag or bottle that contains sodium citrate, which prevents the blood from clotting. When the blood is given to a patient, a plastic tube and hypodermic needle are connected to the recipient's arm. 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 glycerolis removed. The ability to store blood for long periods has been a boon to human health.

Question 38: All of the following are mentioned as potential negative reactions to transfusion EXCEPT______.

A. Sensitivity to donor leukocytes

B. Air bubbles in the blood

Đáp án chính xác

C. Allergies

D. Red-cell incompatibility

Trả lời:

verified Giải bởi qa.haylamdo.com

Đáp án B

Tất cả những điều sau đây được đề cập như là những phản ứng phụ có thể xảy ra đối với truyền máu TRỪ______.

A. Nhạy cảm với bạch cầu                  B. Bong bóng khí trong máu

C. Dị ứng                                           D. Sự không tương thích của hồng cầu

Thông tin: 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. (Phản ứng phụ của truyền máu không phải là bất thường. Người nhận có thể bị phản ứng dị ứng hoặc nhạy cảm với bạch cầu. Một số có thể bị ảnh hưởng bởi sự không tương thích của các tế bào hồng cầu không bị phát hiện.)

=> Chỉ có phương án B không được đề cập

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

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

Question 12: Some high school students often_____helping the disadvantaged or handicapped children.

Xem đáp án » 27/08/2021 18,275

Câu 2:

Read the following passage and mark the letter A, B, C, or 0 on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.

Every summer, when the results of university entrance exam come out, many newspaper stories are published about students who are top-scorers across the country. Most portray students as hard-working, studious, smart and, generally, from low-income families. They are often considered heroes or heroines by their families, communes, villages and communities, And they symbolise the efforts made to lift them, and their relatives, out of poverty. The students are often too poor to attend any extra-classes, which make their achievements more illustrious and more newsworthy. While everyone should applaud the students for their admirable efforts, putting too much emphasis on success generates some difficult questions.

If other students look up to them as models, of course it's great. However, in a way, it contributes to society's attitude that getting into university is the only way to succeed. For those who fail, their lives are over. It should be noted that about 1.3 million high school students take part in the annual university entrance exams and only about 300,000 of them pass. What's about the hundreds of thousands who fail? Should we demand more stories about those who fail the exam but succeed in life or about those who quit university education at some level and do something else unconventional?

"I personally think that it's not about you scoring top in an entrance exam or get even into Harvard. It's about what you do for the rest of your life," said Tran Nguyen Le Van, 29. He is the founder of a website, vexere.com, that passengers can use to book bus tickets online and receive tickets via SMS. His business also arranges online tickets via mobile phones and email. Van dropped out of his MBA at the Thunderbird School of Global Management in Arizona in the United States. His story has caught the attention of many newspapers and he believes more coverage should be given to the youngsters who can be role-models in the start-up community. Getting into university, even with honours, is just the beginning. We applaud them and their efforts and obviously that can give them motivation to do better in life. However, success requires more than just scores," Van said. Van once told a newspaper that his inspiration also came from among the world's most famous drop-outs, such as Mark Zuckerberg of Facebook or Bill Gates who also dropped out of Harvard University.

Alarming statistics about unemployment continues to plague us. As many as 162,000 people with some kind of degree cannot find work, according to Labour Ministry's statistics this month. An emphasis on getting into university does not inspire students who want to try alternative options. At the same time, the Ministry of Education and Training is still pondering on how to reform our exam system, which emphasises theories, but offers little to develop critical thinking or practice. Vu Thi Phuong Anh, former head of the Centre for Education Testing and Quality Assessment at Vietnam National University in Ho Chi Minh City said the media should also monitor student successes after graduation. She agreed there were many success stories about young people, but added that it was imbalanced if students taking unconventional paths were not also encouraged.

Vietnam is, more than ever, in desperate need of those who think outside the box. Time for us to recognise talent, no matter where it comes from or how.

Question 47: The word "them" in paragraph 3 refers to__________.

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Câu 3:

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

Question 8: For many years people have wondered _____ exists elsewhere in the universe.

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Câu 4:

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

Question 18: She frequently volunteers_____extra work because she really likes her job.

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Câu 5:

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

Question 14: The local authority asked for a _____ contribution from the community to repair roads and bridges.

Xem đáp án » 27/08/2021 4,797

Câu 6:

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 6: Despite modern medical technology, many diseases causing by viruses I are still not curable.

Xem đáp án » 27/08/2021 4,388

Câu 7:

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 5: Higher general education is based on theoretical expertise and might be contrasted  with higher vocational education, which concentrating on both practice and theory.

Xem đáp án » 27/08/2021 4,124

Câu 8:

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Question 23: In England, primary education is provided by state schools run by the government and by independent fee-paying schools.

Xem đáp án » 27/08/2021 3,373

Câu 9:

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

Question 17: After leaving high school, a student can apply for a position either university_____a vocational school.

Xem đáp án » 27/08/2021 3,370

Câu 10:

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

Question 22: A bank has promised a donation of $24 million toward the disaster fund.

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Câu 11:

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Question 25: My brother is an old hand at fixing household appliances. I'm sure he can help you.

Xem đáp án » 27/08/2021 2,721

Câu 12:

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

Question 9: After feeling off_____for days, Tom finally went to see his doctor.

Xem đáp án » 27/08/2021 2,639

Câu 13:

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

Question 11: Jeremy's friends were fond of him_____because of his generosity.

Xem đáp án » 27/08/2021 2,458

Câu 14:

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

Question 21: Mary invited her friend, Sarah, to have dinner out that night and Sarah accepted.

- Mary: "Shall we eat out tonight?"

- Sarah: "______”

Xem đáp án » 27/08/2021 2,357

Câu 15:

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Question 24: At first, there was a lot of opposition from the parents of the disabled children. They used to believe that their children couldn't learn anything at all.

Xem đáp án » 27/08/2021 2,232

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