标题: og12-67 a答案的解釋問題 [打印本页] 作者: bensonbao 时间: 2010-8-23 04:08 标题: og12-67 a答案的解釋問題 Several industries have recently switched at least partly from older technologies powered by fossil fuels to new technologies powered by electricity. It is thus evident that less fossil fuel is being used as a result of the operations of these industries than would have been used if these industries had retained their older technologies. Which of the following, if true, most strengthens the argument above? (A) Many of the industries that have switched at least partly to the new technologies have increased their output. (B) Less fossil fuel was used to manufacture the machinery employed in the new technologies than was originally used to manufacture the machinery employed in the older technologies. (C) More electricity is used by those industries that have switched at least partly to the new technologies than by those industries that have not switched. (D) Some of the industries that have switched at least partly to the new technologies still use primarily technologies that are powered by fossil fuels. (E) The amount of fossil fuel used to generate the electricity needed to power the new technologies is less than the amount that would have been used to power the older technologies
我选对了 但是A答案的解释怎说A实际上在weaken呢? (a) in an indirect way, this option slightly weakens rather than strengthens the argument. For if fossil fuls are used to produce the electricity now used by the inductries and if it is because of these newer tech that output has incresed, the argument's conclusion is less likely. 没明白为什么industries output increase了 会weaken argument. 请赐教.....作者: bensonbao 时间: 2010-8-23 14:41
自己頂作者: queenie924 时间: 2010-8-24 01:08
按照OG解释的话~是不是说~假设就是用燃料生产电~~output增大了~所以就要产生更多的电~燃料应该增加了？
