XDJM，帮我解答一下ASSUMPTION类型的题（我的痛啊）

qiqi_cola

砖头37
Editorial:

Critics of nuclear power complain about the allegedly serious harm that might result from continued operation of existing nuclear power plants. But such concerns do not justify closing these plants;after all, their operation has caused no more harm than that caused by pollution generated by coa-and oil-burning power plants,the most important other sources of energy.

Which of the following is an assumption on which the argument depends?

A  Existing nuclear power plants should be closed only if it can be conclusively demonstrated that their continued operation is likely to cause harm more serious than the harm their operation has already caused.

B  Closing exiting nuclear power plants would require greatly increased reliance on coal-and oil-burning power plants.

C  The harm that has resulted from operation of existing coal and oil-burning power plants has been siginificant.

D  The harm that a nuclear power plant is likely to cause as it continues to operate can be reliably predicted from the past history of nuclear power plants.

E  The only harm that has resulted from operation of existing coal and oil-burning power plants has resulted from the pollution generated byu these plants

c为什么不对了？

feifei 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.

答案怎么选到B了？

liflyy

1）此题结论（B） But such concerns do not justify closing these plants;after all, 论据（A） their operation has caused no more harm than that caused by pollution generated by coa-and oil-burning power plants,the most important other sources of energy.
ASSUMPTION 分几种类型，AB相关，A可行A有意义，除了A没有其他原因，此题属于3的情况。如果除了污染的问题之外，油和煤还会带来其他的害处，则此例不能作为不关闭和电站的论据。
2）21题刚刚讨论过，翻翻前几天的帖子。