2. 外语
  3. Because of the rising cost of fuel, scientists are building automobile engines who will conserve gasoline but still run smoothly

Because of the rising cost of fuel, scientists are building automobile engines who will conserve gasoline but still run smoothly

admin2018-01-28  44
问题 Because of the rising cost of fuel, scientists are building automobile engines who will conserve gasoline but still run smoothly.
选项
答案who—that／which
解析 译文：因为燃料价格的不断上涨，科学家们正在制造一种能节省石油却又运行平稳的汽车发动机。
分析：考查定语从句的引导词。定语从句的先行词engines是物而不是人，指代先行词的引导词不能用who，而应改为that或which。
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