博智教育 GMAT培训 GMAT每日一题
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.
题目分析：原文谈的是用电和用老的技术哪个需要的燃料多。五个选项围绕燃料多少谈的就是B和E，可是B说的是用于manufacture the machinery需要的燃料，而E说的是power the new technologies所需要的燃料，文章谈的是用这些fuel去power一些technology，选E
博智教育 GMAT培训 GMAT每日一题
