72. The number of undergraduate degrees in engineering awarded by colleges and universities in the United States increased by more than twice from 1978 to 1985.
(A) increased by more than twice
(B) increased more than two times
(C) more than doubled
(D) was more than doubled
(E) had more than doubled
Choice A is faulty because an adverb such as twice cannot function as an object of the preposition by. B distorts the sentence's meaning, stating that the number of engineering degrees conferred increased on more than two distinct occasions. D's passive verb was ... doubled suggests without warrant that some unnamed agent increased the number of engineering degrees. The past perfect tense in E, had... doubled, is inappropriate unless the increase in engineering degrees is specifically being viewed as having occurred further back in the past than some subsequent event. Choice C is best.
哪位牛人能否把B的错误解释一下
OG的解释说B有歧义，不知道是增加了2倍，还是增加了2次。
个人体会，只有2倍以上，如3倍4倍的，才说X times
more than doulbed 改为 doubled more than 是不是更准确，因为more than 的 than 后应该直接接比较的对象：from X to Y.
请nn指导？
个人之见，如选C去掉各修饰成分，即为 The number doubled from 1978 to 1985. 比较其他选项，C最简洁。
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