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
B not 好像不可以削弱，因为有了一个some , not +some 好像不可以说明任何问题
还是请大牛们指教一下
多谢作者: 卧室春竹 时间: 2003-2-12 19:28
B选项 去掉not 是个削弱
not +weaken 就是个假设了作者: yuw99gmat 时间: 2003-2-12 20:41
还是不太明白
Some people in Beethoven’s time did not ingest mercury. 好像去掉not 也构不削弱
如果 把some 换成 ALL people in Beethoven’s time did not ingest mercury. 好像可以构成削弱。
请指教作者: 卧室春竹 时间: 2003-2-12 22:18
呵呵 我觉得Isaac Newton同学 也可能加入 some people中啊！
属于没事儿 吃水银 而不是因为要治sex病..才吃的...
个人看法！作者: spacezlly 时间: 2003-2-13 16:10
同意
假设some people 都爱吃水银 ， 老贝的即使被查出吃了水银，也未必是为治病啊。作者: iamf 时间: 2003-2-26 11:26
