问题 单项选择题

下列有关血制品的叙述正确的是()

A.输入血浆前不需做血型鉴定

B.输入成分血之前不需做交叉配备

C.血小板浓缩悬浮液应保存在-30°C,保存期为1年

D.与全血相比,输入成分血不易引起高钾血症和酸中毒

E.血浆内主要为白细胞和血浆蛋白,不含红细胞

答案

参考答案:D

解析:

临床常用的血制品可氛围全血和成分血及其他血制品。各成分血的保存时间和方法不相同,血小板浓缩悬液在ACD保养液中保存,22℃保存,24h有效;冰冻血浆在-30℃,保存期为1年。

阅读理解

Jamaican sprinter (短跑选手) Usain Bolt plans to send a message to rival Tyson Gay by breaking the world 100m record in the London Grand Prix on Friday.

Bolt, who won gold in the 100m,200m and 4*100m relay in reord times at the Beijing Olympics last year, is determined to use the Crystal Palace event to crush the morale (士气)  of his main rival for gold at next month’s World Athletics Championships in Berlin.

The 22-year-old is slowly returning to peak form after posting 19.59 sec for the 200m in Lausanne earlier this month and clocking a time of 9.79 sec over 100m in cold, rainy conditions in Paris on Friday.

Despite Bolt’s impressive times, Gay still believes he has the beating of the Jamaican. But Bolt insists there is no one in the sport who scares him and he will prove the point in south London this weekend.

Although Bolt believes he is only running at 85 percent at the moment while he recovers from injuries suffered in a recent car crash in Jamaica, he sees no reason why he can’t break his world record 100m time of 9.69 seconds.

However he won’t get the chance to take on Gay in the 100m in London as the American is only running in the 200m, which Bolt is not competing in, so he will have to settle for underlining his own ability.

“You never know what is possible. I will give my best either way. My friends are saying I’m bringing the rain wherever I go but we will see on Friday.”

While Bolt would love to make a big impact in London, he knows the main event is the World Championships.

“The London Grand Prix will show me where I’m at and what I need to do. After, we can analyse what I need to do ahead of the World Championships.”

小题1:According to the passage, Bolt competed and will compete in the following event. Which of them is arranged in time order?

a. Lausanne athletics gold league matches

b. Beijing Olympic Games

c. Paris athletics gold league matches

d. World Athletic championships

e. London grand Prix

A.b-c-a-e-d

B.b-c-a-d-e

C.b-a-c-e-d

D.b-a-c-d-e小题2:What does the underlined phase “take on” mean in paragraph 6?

A.employ

B.compete against

C.accept

D.develop小题3:Which of the following is true?

A.Jamaican sprinter Usain Bolt broke the world 100m record in the London Grand Prix on Friday.

B.Bolt will not compete in the 200m in London because of Gay’s impressive times.

C.Bolt won 3 gold medals at the Beijing Olympic Games at the age of 22.

D.Bolt suffered a car crash in London recently.小题4:What can we learn from the last two paragraphs?

A.Bolt is expecting the London Grand Prix.

B.Bolt thinks the world Championships is more important.

C.Bolt made a big difference in the London Grand Prix.

D.Bolt is not confident in his success in the London Grand Prix.

单项选择题