标题: 狒狒21题~怎么想都觉得是A哪.......求解答求解答~~~ [打印本页] 作者: MyrticeTAN 时间: 2011-11-8 15:38 标题: 狒狒21题~怎么想都觉得是A哪.......求解答求解答~~~ 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.
There should be 2 assumptions to support the hypothesis. The 1st assumption of the author is that only venereal disease will be treated by mercury in Beethoven’s time. The 2nd assumption is only some people in Beethoven's time will ingest mercury, if all people ingest mercury, the evidence is not useful. So, some people in Beethoven's time did not ingest mercury. The answer should be B.
A, E have nothing to do with the argument.
C is not necessary, 'Since mercury was commonly ingested in Beethoven’s time to treat venereal disease' is enough.
D is wrong: according to the author, it is the venereal disease that will cause the deafness, not the mercury poison.
但是如果对A取非的话，也就是说身体里有的M可能会eliminate掉……不是削弱了么？
求NN解答哦~ 作者: AprilL 时间: 2011-11-8 17:00
我觉得是不是因为hypothesize 是说： venereal disease caused his deafness A选项的话就算是m被排出了，头发里没有，也不能说明他就没有v. 还有这个eliminate是不是说排出体外，但是和头发没有关系，因为头发可以medical history of individuals 。就像解释的说和文章没有关系？