Thứ sáu, 15/11/2024
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Câu hỏi:

19/07/2024 146

 

* 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

Đáp án chính xác

D. Every month

Trả lời:

verified Giải bởi Vietjack

ĐÁP ÁN C

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.

Câu trả lời này có hữu ích không?

0

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

THANKS A MILLION

    Percy Ross was bom in 1916 in Michigan. His parents has come to the USA from Latvia and Russia and the family were poor. But Percy soon showed a talent (31)_________ business and made a (32)_______in the fur trade and auction business. Then disaster struck and he lost all his money. But he soon made a fortune again - this time by manufacturing plastic bags. In 1969, he sold his plastic bag company for millions of dollars.

     Ross started giving away in 1977: he gave $50,000 to 50 Vietnamese refugees so that they could make a new home in the USA. (33) ________ he held a Christmas party tor 1,050 poor children in the American town of Minneapolis. Ross bought a bike for every one of the 1,050 children at the party.

   After these first experiences of giving money away, Ross decided to do it on a (34)________basis. He started a newspaper column called “Thanks a Million”, and later a radio show, in order to (35)_________his money. It took years, but Ross finally succeeded in giving away his entire fortune.

(Source: Solutions - Intermediate)

Điền vào ô 32

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Câu 2:

THANKS A MILLION

Percy Ross was bom in 1916 in Michigan. His parents has come to the USA from Latvia and Russia and the family were poor. But Percy soon showed a talent (31)_________ business and made a (32)_______in the fur trade and auction business. Then disaster struck and he lost all his money. But he soon made a fortune again - this time by manufacturing plastic bags. In 1969, he sold his plastic bag company for millions of dollars.

     Ross started giving away in 1977: he gave $50,000 to 50 Vietnamese refugees so that they could make a new home in the USA. (33) ________ he held a Christmas party tor 1,050 poor children in the American town of Minneapolis. Ross bought a bike for every one of the 1,050 children at the party.

   After these first experiences of giving money away, Ross decided to do it on a (34)________basis. He started a newspaper column called “Thanks a Million”, and later a radio show, in order to (35)_________his money. It took years, but Ross finally succeeded in giving away his entire fortune.

(Source: Solutions - Intermediate)

Điền vào ô 33

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Câu 3:

* 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 question.

The company paid its workers undeservedly, which made them let down.

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Câu 4:

THANKS A MILLION

    Percy Ross was bom in 1916 in Michigan. His parents has come to the USA from Latvia and Russia and the family were poor. But Percy soon showed a talent (31)_________ business and made a (32)_______in the fur trade and auction business. Then disaster struck and he lost all his money. But he soon made a fortune again - this time by manufacturing plastic bags. In 1969, he sold his plastic bag company for millions of dollars.

     Ross started giving away in 1977: he gave $50,000 to 50 Vietnamese refugees so that they could make a new home in the USA. (33) ________ he held a Christmas party tor 1,050 poor children in the American town of Minneapolis. Ross bought a bike for every one of the 1,050 children at the party.

   After these first experiences of giving money away, Ross decided to do it on a (34)________basis. He started a newspaper column called “Thanks a Million”, and later a radio show, in order to (35)_________his money. It took years, but Ross finally succeeded in giving away his entire fortune.

(Source: Solutions - Intermediate)

Điền vào ô 35

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Câu 5:

* 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 question.

You must drive it home to him that spending too much time playing computer games will do him no good.

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Câu 6:

* Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

Endemic diseases are diseases that habitual infect only those persons living within certain geographical limits.

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Câu 7:

THANKS A MILLION

Percy Ross was bom in 1916 in Michigan. His parents has come to the USA from Latvia and Russia and the family were poor. But Percy soon showed a talent (31)_________ business and made a (32)_______in the fur trade and auction business. Then disaster struck and he lost all his money. But he soon made a fortune again - this time by manufacturing plastic bags. In 1969, he sold his plastic bag company for millions of dollars.

     Ross started giving away in 1977: he gave $50,000 to 50 Vietnamese refugees so that they could make a new home in the USA. (33) ________ he held a Christmas party tor 1,050 poor children in the American town of Minneapolis. Ross bought a bike for every one of the 1,050 children at the party.

   After these first experiences of giving money away, Ross decided to do it on a (34)________basis. He started a newspaper column called “Thanks a Million”, and later a radio show, in order to (35)_________his money. It took years, but Ross finally succeeded in giving away his entire fortune.

(Source: Solutions - Intermediate)

Điền vào ô 31

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Câu 8:

* 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.

The weather was so dismal that they had to cancel the picnic immediately.

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Câu 9:

Although thunder and lightning are produced at the same time, light waves travel faster________, so we see the lightning before we hear the thunder.

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Câu 10:

* Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

When I got to the cinema Jack had been waiting for me.

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Câu 11:

* 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.

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Câu 12:

“What happened to the plane?” “It had hardly touched down__________it burst into flames.”

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Câu 13:

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

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Câu 14:

On checking them out, I found that I was mentioned in the article, which did me no_______at all.

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Câu 15:

* 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.

Jenny: “Hi, Mark. Long time no see. What’s going on?"

Mark: “______”.

Xem đáp án » 19/06/2021 324