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求助!OG12 CR97题~
og12
97. 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 level of
output is held constant.
In the argument given, the two boldfaced portions play which of the following roles?
(A) The first identifi es the content of the conclusion of the argument; the second provides support for that
conclusion.
(B) The first provides support for the conclusion of the argument; the second identifi es the content of that
conclusion.
(C) The first states the conclusion of the argument; the second calls that conclusion into question.
(D) The first provides support for the conclusion of the argument; the second calls that conclusion into
question.
(E) Each provides support for the conclusion of the argument.
答案是选B,但还是想不通啊~~~
请问各路大侠,为什么第一句boldface是支持结论啊~~我觉得它不过是陈述了一个事实么~~~
不胜感激! |
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