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 identifies 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 identifies 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.
题目分析：第一个黑体字说有个公司干了个事情，第二个黑体字就它干的事情探讨了一下。A说第一个黑体就结论的部分内容，不对，第一个黑体还没说结论呢。B说黑1支持杰伦，黑2是结论的一部分，不算错，留着。C说黑1是结论就不可以，杀。D说黑1支持结论黑2驳斥结论，两个黑体字之间不是互相驳斥的关系，杀。E两个都支持结论，这个如果对两个黑体就是并列关系了，可第二个是谈论了黑1干的那个事情，地位不对等，不能并列，杀。
