求助GWD24-20，没搞明白啊╮(╯_╰)╭

crystalhuang · 发表于 2010-12-23 20:19:46

Q 20:
According to a 1996 survey by the National Association of College and
University Business Officers, more than three times as many independent
institutions of higher education charge tuition and fees of under $8,000 a
year than those that charge over $16,000.

A.   than those that charge
B.   than are charging
C.   than to charge
D.   as charge
E.   as those charging
为什么选E
我觉得应该是charge啊，为什么是ing形式，能不能给我解释下？？········

AlohaDJ · 发表于 2010-12-23 21:03:37

(1) as many...as

(2) charging是V+ing作后置定语，修饰those，逻辑上和those构成主谓关系。

本贴相关题目 TN-10-SC-20 (KQGO)

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求助GWD24-20，没搞明白啊╮(╯_╰)╭

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