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费费逻辑宝典21?

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楼主
发表于 2003-12-16 14:33:00 | 只看该作者

费费逻辑宝典21?

21. Historian: We can learn about the medical history of individuals through chemical analysis of their hair. It is likely, for example, that Isaac Newton’s psychological problems were due to mercury poisoning; traces of mercury were found in his hair. Analysis is now being done on a lock of Beethoven’s hair. Although no convincing argument has shown that Beethoven ever had a venereal disease, some people hypothesize that venereal disease caused his deafness. Since mercury was commonly ingested in Beethoven’s time to treat venereal disease, if researchers find a trace of mercury in his hair, we can conclude that this hypothesis is correct.
Which one of the following is an assumption on which the historian’s argument depends?
(A) None of the mercury introduced into the body can be eliminated.
(B) Some people in Beethoven’s time did not ingest mercury.
(C) Mercury is an effective treatment for venereal disease.
(D) Mercury poisoning can cause deafness in people with venereal disease.
(E) Beethoven suffered from psychological problems of the same severity as Newton’s.
为何不选D?
沙发
发表于 2003-12-16 14:54:00 | 只看该作者
D 不是前提。D 的成立正好可以消弱结论。注意结论是we can conclude that this hypothesis is correct。this hypothesis 指的是venereal disease caused his deafness。若D 成立则说明可能是铅污染。
我觉得都不太像。比较好的答案可能是A。请确认。
板凳
发表于 2003-12-17 00:05:00 | 只看该作者
答案B

a,c都是支持
http://forum.chasedream.com/dispbbs.asp?boardID=24&ID=28648
这里面有两个链接,可以参考一下。
地板
发表于 2003-12-17 08:45:00 | 只看该作者
谢谢指正。
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