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provides support for the conclusion of the argument具体应该要怎么定义呢?

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发表于 2017-8-15 15:12:53 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
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.这个第一句话为什么是 provides support for the conclusion of the argument呀?它难道不就是在陈述一个现象吗?

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