CR 一題混淆選項,麻煩幫驗證下思路

xx50824 · 发表于 2017-12-14 17:41:16

In order to reduce dependence on imported oil, the government of Jalica has imposed minimum fuel-efficiency requirements on all new cars, beginning this year. The more fuel-efficient a car, the less pollution it produces per mile driven. As Jalicans replace their old cars with cars that meet the new requirements, annual pollution from car traffic is likely to decrease in Jalica.

Which of the following, if true, most seriously weakens the argument‘?

A. In Jalica, domestically produced oil is more expensive than imported oil.

B. The Jalican government did not intend the new fuel-eﬁiciency requirement to be a pollution- reduction measure.

C. Some pollution-control devices mandated in Jalica make cars less fuel-eﬁicient than they would be without those devices.

D. The new regulation requires no change in the chemical formulation of ﬁmel for cars in Jalica.

E. Jalicans who get cars that are more fuel-eﬂicient tend to do more driving than before.

可以理解E當正確答案, 但總覺得A也是可以當“他因”去weaken結論句(in order to reduce dependence on imported oil),
因為既然國內油價高,那當然國人還是買進口油多,所以無法降低對進口油的依賴度.
只不過A比較沒有提到pollutiom的部分, 想請問E比A好的主要原因是否是因為有把pollution部分的scope考量進去,所以更"mostly" weaken the argument,而A就只是單純也可以weaken結論句而已？

麻煩各位NN了！！感激不盡

xx50824 · 发表于 2017-12-15 00:08:15

? ? ? ！！！

你是认真的吗 · 发表于 2017-12-15 08:42:53

em...我觉得楼主可以这么想：楼主认为A会有一定的合理之处是，因为国产油比进口油贵，所以推广节能汽车有利于减少对进口油的依赖。但是中间则加入了自己的假设：国产油和进口油是一起出现在市场上，而消费者更愿意买进口油。但是，我们要考虑到，会不会存在这样一种情况，是国产油是供不应求的，所以才要进口。那么即使国产油比进口油贵，那么也无补于事。所以实际上是什么情况我们不得而知，无论是哪种都需要加入我们自己的推论，慎选。而E则更直接一点，合理。

hamuco · 发表于 2017-12-15 17:15:06

这道题我也错了！看OG解释，这段话的目标是 reduce pollution，前面的 reduce import oil 只是 background，不能看做是本段推论的目标。

CR 一題混淆選項,麻煩幫驗證下思路

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