天山-4-Q32

这道题目好像没什么人讨论过，难道我这么弱？

NN帮忙看看吧：）

Q32:
Delta products, Inc., has recently switched at least partly from older technologies
using fossil fuels to new technologies powered by electricity. The question has been
raised whether it can be concluded that for a given level of output, Delta’s operation now
causes less fossil fuel to be consumed than it did formerly. The answer, clearly, is yes,
since the amount of fossil fuel used to generate the electricity needed to power the
new technologies is less than the amount needed to power the older technologies,
provided that the level of output is held constant.
In the argument given, the two boldface portions play which of the following roles?
A. The first identifies the content of the conclusion of the argument; the second
provides support for that conclusion.
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B. The first provides support for the conclusion of the argument; the second
identifies the content of that conclusion.
C. The first states the position that the argument opposes; the second states the
conclusion of the argument.
D. Each provides evidence that calls the conclusion of the argument into question.
E. Each provides support for the conclusion of the argument.
Answer: E

我选A

http://forum.chasedream.com/dispbbs.asp?BoardID=24&ID=83196

MM看看这里，也许有详细的讨论。

请善用搜索功能和置顶的讨论汇总，因为这样不用等回复，而且效率高，你说是吗？

我已经看过了，没有定论才发帖子问的