Berkson偏倚是指（） A.入院率偏倚 B.易感性偏倚 C.检出征候偏倚 D.志

衡量人群中在短时间内新发病例的频率，采用的指标为（）

A.罹患率

B.发病率

C.患病率

D.感染率

E.发病比

新中国成立初期，为发展社会主义民主和社会主义法制奠定了初步基础的是  [ ]

A．《中华民国临时约法》        

B．《中国人民政治协商会议共同纲领》    

C．1954年《中华人民共和国宪法》

D．1956年底社会主义改造基本完成

关于支气管动脉栓塞治疗大咯血的适应证，下述错误的是（）

A.急性大咯血而缺乏手术条件者

B.反复较大量咯血经内科久治无效而肺部病变广泛和肺功能低下者

C.大量咯血手术后复发者

D.大咯血患者肺切除术前应用

E.病人拒绝手术者

阅读表达。

阅读短文,并按照题目要求用英语回答问题。

     In order to be a success in the American business world, you must get along with people. You must

learn to behave yourself in such a way that you earn the affection and respect of others. As we have

already pointed out, Americans mix business and pleasure. Therefore, learning how to chat informally

(非正式地)can be a help with your American business contracts. Americans like to talk about a number

of different topics-sports, politics, cars, popular movies, television shows and personal interests.

     Many large American cities have sports teams. If you are working with Americans in the United

States, it would be a good idea to find out about the local sports teams so that you can join in the almost

inevitable discussions about "What our team will do this year." Politics can be a sensitive topic unless

everyone is of the same mind politically. Limit your discussions to asking questions of your friends. Most

Americans are car owners and some are even obsessive(着迷的)about the subject. You can contribute

to the discussion by talking about cars you have owned or by sharing information you have had in

automotive magazines. Americans watch television almost every night and attend movies regularly, so

naturally TV programs and the latest movies become topics for discussions.

     If you are unable to watch American television or attend American movies, reading the entertainment

section of such magazines as Time and Newsweek will keep you up to date on what is popular in

America.

1. What's the best title of the passage? (No more than 10 words)

   ________________________________________________________________________

2. Why should people be careful with the topic-politics? (No more than 8 words)

   ________________________________________________________________________

3. If you want to keep you up to date on what is popular in America, what should you do?  (No more

    than 10 words)

   ________________________________________________________________________

4. The underlined word "affection" in Paragraph 1 refers to ________.(No more than 4 words)

5. Suppose you are doing business in America, what would you do to be a success in business world?

    (No more than 20 words)

   ________________________________________________________________________

   ________________________________________________________________________

在哪些情况下应加强对气温、气压的监视与控制？