Deltaproducts, Inc., has recently switched at least partly from older technologiesusing fossil fuels to new technologies powered by electricity.The question has been raised whether it can be concluded that for a given levelof output, Delta’s operation now causes less fossil fuel to be consumed than itdid formerly. The answer, clearly, is yes, since the amount of fossil fuel used tofenerate the electricity needed to power the new technologies is less than theamount needed to power the older technologies, provided that the level ofoutput is held constant. Inthe argument given, the two boldface portions play which of thefollowing roles? A. The first identifies the content ofthe conclusion of the argument; the second provides support for thatconclusion. B. The first provides support for theconclusion of the argument; the second identifies the content of thatconclusion. C. The first states the position thatthe argument opposes; the second states the conclusion of the argument. D. Each provides evidence that callsthe conclusion of the argument into question. E. Each provides support for conclusion of the argument
答案是E 而我选了A, 我的想法是第一句提供的是背景资料啊,只是陈述了一个事实不是吗?@。@
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