问题 单项选择题

在一项胰腺癌病例的病例对照研究中,17%病人被诊断为糖尿病患者,根据年龄、性别、种族和其他特征配对的对照组有4%被诊断为糖尿病患者,由此得出糖尿病在胰腺癌中起了病因的作用()。

A.正确

B.不对,因为没有对照组或可比人群

C.不对,因为在糖尿病和胰腺癌的发生间没有建立时间顺序

D.可能不对,因为在胰腺癌病例中缺少糖尿病的确诊

E.可能不对,因为在非糖尿病患者中可能确诊胰腺癌

答案

参考答案:C

阅读理解

Americans are very direct people. When they want something, they say“Yes”, and when they don’t, they say “No”.If they want something different from what is given, they ask for it.  Here’s an example : I arrive at someone’s house and he or she gives me wine, but I don’t want wine. Maybe I don’t like it or maybe I just don’t want it. I will say “No thanks”. If everyone around me is drinking something, I would ask  for something else,“No thanks. But I’ll take a bit of tea if you have some.” It’s a polite way to ask something you really want. If I really want wine, I just say “Yes, thank you”. Unless they happen know the Chinese customs(风俗;习惯),westerners will not ask you again and again after you to eat or drink something.

根据短文内容,选择正确答案,并将其字母代号填入题前括号内。(10分)

小题1:If Americans want something, they would say“__”.

A.yes, thank you

B.No, thanks

C.No, I’m sorry

D.Yes, why not小题2:When Americans don’t want what is given, they would say“__”

A.No, I don’t

B.No,thanks

C.Yes, thanks

D.No, I’m sorry小题3:In this passage,“westerners” means__.

A.the people who lives in the west of their county

B.the visitors who go to the western countries

C.the people who lives in the western countries

D.the people who know the customs of the west小题4:The Chinese people might __if you don’t want something given.

A.be glad

B.say“thank you”

C.Get angry

D.Ask you again to take it小题5:From this passage we know that __.

A.the Chinese people are direct

B.The Chinese customs are better

C.the westerners are more polite

D.Different countries have different customs

填空题