问题 单项选择题 A1/A2型题

局麻药加入肾上腺素的主要目的在于()。

A.提高血压

B.减慢麻醉剂吸收速度

C.防止手术野渗血

D.增高对局麻药的耐受性

E.对抗麻醉剂过敏性

答案

参考答案:B

解析:局麻药内加入肾上腺素可以延缓局麻药的吸收,避免或减轻中毒。通常,神经阻滞麻醉加入肾上腺素的浓度为1:20万。故答案应选B。

阅读理解

阅读理解。

       Have you thought about what might have happened if American President Kennedy was saved in

  1963? Impossible, you'll say Kennedy was killed in Dallas, Texas, on 22nd November, 1963, and that's

   an end to it.

       But what would happen if he came back to life?  That's what the "stuff books"are made of. In 1988 an

   American named George Bernall wrote a book of this kind. The book is called "Promises to Keep". It

  was thought of as the best one of the kind. He made the book like real life. The story was so interesting

  that it kept readers turning the page till the end though it had over 800 pages.

       In fact we know that John F. Kennedy was killed and never came back to life. In this book, he comes

  back to life, and the story begins from there.

       The book set readers thinking, not especially about Kennedy's killing, but about what would happen

  after.

1. The phrase "come back to life" means _____.

A. never die again

B. become alive again

C. know one is still living

D. live forever                          

2. What kind of book is "Promises to Keep"?

A. A kind of study of Kennedy's killing.

B. An American horror novel.

C. A life story about Kennedy.

D. A story book developed from a true story.

3. The book "Promises to Keep" tells us _____.

A. how to write a "stuff book" like the one written by George Bernall

B. how to write about history

C. what would happen when Kennedy was brought back to life

D. how to make up a story about the presidents

4. The book not only keeps the readers interested, until the end, but makes them _____.

A. feel terrible

B. stop thinking

C. laugh at something

D. think about something

5. Although the story is _____, readers like to read it very much.

A. not interesting              

B. long

C. sad                      

D. not exciting

单项选择题