问题 单项选择题 B1型题

检测血清中的不完全抗体可应用()

A.直接Coombs试验

B.间接Coombs试验

C.ELISA法

D.PEG沉淀法

E.RAST

答案

参考答案:B

解析:1.直接Coombs试验是检测红细胞上有无抗体吸附的试验,是检测致敏红细胞的一种方法。2.用血清在体外致敏红细胞,再检测红细胞上有无相应抗体吸附的试验称为间接Coombs试验,主要用于检测血清中的不完全血型抗体。3.临床上常用ELISA法检测抗原特异性免疫复合物。4.临床上常用PEG沉淀法或比浊法检测非特异性免疫复合物。

阅读理解

“Time is a problem for children,” states a news report for a new Swiss watch. Children in some countries “learn time slowly” because “they don’t wear watches” and “parents don’t really know how to teach them time.” The children grow up with this handicap and become adults-and then can’t get to work on time. Is there an answer to this problem? Of course-it’s the Flick Flak, made by a famous Swiss watch company.

The Flick Flak is being marketed as something teaching watch for children aged 4 to 10. The watch itself does not teach children how to tell time, of course; it merely “takes their imagination” by presenting the “hour” hand as a beautiful red girl named Flak and the “minute” hand as a tall blue boy named Flick. Flick points to related “blue” minutes on the dial, while Flak points to “red” hour numbers. The characters and colors combined with parental help, are supposed to teach young children how to tell time.

The watch comes equipped with a standard battery and a nylon band (尼龙表带). Peter Lipkin, the United States sales manager for the Flick Flak, calls it “childproof: if it gets dirty you can throw the whole watch in the washing machine.” The product is being sold in select department stores in Europe, Asia and the United States for a suggested price of $25. Parents who buy the watch may discover that it is one thing to tell time; it’s quite another for them to be on time.

小题1:From the news report we know that ______.

A.parents are patient when teaching children time

B.parents have little idea of how to teach children time

C.children are likely to learn time quickly

D.children enjoy wearing the Flick Flak watch小题2:The author doesn’t seem to believe ______.

A.children will be on time if they have not learnt how to tell time

B.a Flick Flak can help parents teach their children how to tell time

C.the Flick Flak can take children’s imagination

D.children usually have trouble telling time if they don’t wear watches小题3:The underlined word handicap (Para. 1) means ______.

A.displeasure

B.discouragement

C.disappointment

D.disadvantage小题4:The United State sales manager calls the new watch “childproof” because ______.

A.it is designed to teach children to be on time

B.it proves to be effective in teaching children time

C.it is made so as not to be easily damaged by children

D.it is the children’s favorite watch

判断题