问一道og12里的题 实在不理解呀

jiejiexi

67.  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.
这个题为什么b不对呢？

gaga110

加强argument，要加强：前提的那句证明了后面的那句。

所以要补gap吧。。。

Less fossil fuel was used to manufacture the machinery employed in the new technologies

无关选项。。。

jiejiexi

不理解这里有什么gap

Czarina

原文说新的技术用电而不用fossil fuels，所以更少的fossil fuels会被用
gap就是，电也有可能是通过fossil fuels产生的

jiejiexi

谢谢楼上的 懂了