According to a 1996 survey by the National Association of College an 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
我选了E,这题貌似有争议?到底选啥?为什么?争议在D,E之间。
这道题,我更倾向选D
理由为:
as many independent institutions of higher education charge tuition and fee