问题 单项选择题 A3/A4型题

某研究者,为了验证氯霉素对伤寒的疗效,在408例伤寒病人中进行对照试验,其中251例用氯霉素治疗,其余157例不用。结果使用组251人中死亡20人,死亡率7.07%,未用组157人中死亡36人,病死率22.8%,已有结论被亲自证实。

下面哪种说法是错误的()。

A.人体实验在临床医学中的价值和道德意义是无可非议的

B.无道德代价的实验,在医学科学方面并非都能做到

C.在临床医学研究中使用安慰剂是心理实验,但要付出道德代价

D.无道德代价的实验,在医学科学方面是可以全部做到的

E.安慰剂虽没有药理作用,但确有一定的效果

答案

参考答案:D

解答题
阅读理解

In the early 1990s,the word” Internet” was strange to most people. But today, Internet has become a useful tool for people all over the world. Maybe Internet has been the greatest invention in the field of communication in the history of mankind(人类).

Communicating with others on the Internet is much faster. We can chat with a person who is sitting in the other part of the world. We can e-mail our friends and they can read the e-mails within a minute. Giving all kinds of information is probably the biggest advantage of the Internet. We can use search engines to find the information we need. Just type in a keyword or keywords and the search engine will give us a list of suitable websites to look at.

We can enjoy a lot on the Internet by downloading games, visiting chat rooms or surfing (浏览)websites. There are some games for free. We can meet new and interesting people in the chat now. We can also listen to music and see films.

Now ,there is a lot of service on the Internet such as online banking ,job finding and ticket buying. We can also do shopping and find nearly all kinds of goods. Sometimes we can find something that is quite good but very cheap.

小题1:How many main advantages of the Internet are talked about in the        passage?

A.Three.

B.Four.

C.Five.

D.Six.小题2:What fact doesn’t the passage provide?

A.We can find almost anything we want to know on the Internet.

B.Some games on the Internet are free.

C.We can buy most things we need on the Internet.

D.Goods on the Internet are more expensive than those in real shops.小题3:Which title best gives the main idea of the passage?

A.Online Shopping

B.Exchanging Information on the Internet

C.The Advantages of the Internet

D.Surfing the Websites on the Internet