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Several industries have recently switched at least partly from older technologies powered by fossil fuels to new technologies powered by electricity. It is thus evident that less fossil fuel is being used as a result of the operations of these industries than would have been used if these industries had retained their older technologies.

Which of the following, if true, most strengthens the argument above?

正确答案: E

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[逻辑小分队] 请教大牛们一个OG13的题目CR67

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楼主
发表于 2014-4-14 18:27:11 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
67. Several industries have recently switched at least partly from older technologies powered by fossil fuels to new technologies powered by electricity. It is thus evident that less fossil fuel is being used as a result of the operations of these industries than would have been used if these industries had retained their older technologies.

Which of the following, if true, most strengthens the argument above?

(A) Many of the industries that have switched at least partly to the new technologies have increased their output.
(B) Less fossil fuel was used to manufacture the machinery employed in the new technologies than was originally used to manufacture the machinery employed in the older technologies.
(C) More electricity is used by those industries that have switched at least partly to the new technologies than by those industries that have not switched.
(D) Some of the industries that have switched at least partly to the new technologies still use primarily technologies that are powered by fossil fuels.
(E) The amount of fossil fuel used to generate the electricity needed to power the new technologies is less than the amount that would have been used to power the older technologies.
答案是E为何我觉得B也可以呢?
请教!感谢
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沙发
发表于 2014-4-14 22:43:25 | 只看该作者
1;支持性
2:前提:从旧+fossil fuels 转成 新+电力
3:结论:旧转新 省了fossil fuels
4:core:转换 省fossil fuels(据此排除选项)
5:两种干扰选项:1:无关 2:削弱
6;A:无关 output增加了 然后呢 更省油没关系  B比较模糊 机器这个起到了一定的支持 但是难道 新技术里面就只有一项机器省油吗?这个是支持但是有限   C:电跟省油没关系或者说也有点点支持 D 削弱 E是100% 因为技术对应的是技术 所以可能技术里面包括:机器+操作+控制..... 所以这个更加支持比B
板凳
 楼主| 发表于 2014-4-15 12:21:17 | 只看该作者
boalgmat 发表于 2014-4-14 22:43
1;支持性
2:前提:从旧+fossil fuels 转成 新+电力
3:结论:旧转新 省了fossil fuels

感谢
你的解题思路好清晰啊,特别是“5:两种干扰选项:1:无关 2:削弱“

我又重新看了下B,感觉是不是B错在manufacture这个词,因为题干事实说fossil作用是power相关的operation而不是manufacture
所以B是无关选项
我的这个理解是可以接受的么?

OG本身的解释我没大懂。。。

地板
发表于 2014-4-15 17:59:02 | 只看该作者
B我觉得 主要是  manufacture the machinery 生产机器的用油少了 和 新技术用油少   你觉得可以是对等吗?不可以 但是至少起到了点点支持作用 那么就是说B只有10%的支持 而E是100%支持 那就要选择E了
5#
 楼主| 发表于 2014-4-18 14:08:17 | 只看该作者
感谢哈
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