【OG24-746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? _mofa留学圈mofaGRE在线题库系统_GRE在线搜题_GRE题库解析_GRE真题机经_GRE课程_GRE培训机构

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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?

Many of the industries that have switched at least partly to the new technologies have increased their output. 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 oldertechnologies. 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. Some of the industries that have switched at least partly to the new technologies still use primarily technologies that are powered by fossil fuels. 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.

正确答案： E

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题干翻译
一些行业采用了由电力驱动的新技术。因此，很明显，由于这些行业的运营，与如果这些行业保留其旧技术相比，现在使用的化石燃料更少。 逻辑链
New tech → Less fossil fuel 问题类型
增强题 推理过程
论点是新的电力驱动技术使行业运营中化石燃料使用减少，需要找到能加强这一因果关系的选项。 选项分析
A选项：许多部分转向新技术的行业增加了产出。产出增加与化石燃料使用量是否减少无关，无法增强，排除。 B选项：新技术中使用的机器制造所消耗的化石燃料比旧技术中机器制造所消耗的少。讨论的是制造机器时化石燃料的使用，而非行业运营时，话题不一致，排除。 C选项：部分转向新技术的行业比未转向的行业使用更多电力。说的是电力使用情况，未涉及化石燃料使用是否减少，无关，排除。 D选项：一些部分转向新技术的行业仍然主要使用由化石燃料驱动的技术。不能说明整体化石燃料使用量的变化情况，无法增强，排除。 E选项：为新技术供电所需的化石燃料量比为旧技术供电所需的化石燃料量少。补充了新技术在供电环节消耗化石燃料更少的论据，加强了新技术使化石燃料使用减少的论点，当选。

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