请教（5）

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 $8000 a year than those that charge over $16000.

A. than those that charge

B. than are charging

C. than to charge

D. as charge

E. as those charging

我选D。觉得明显只有D、E可以考虑，E的charging与前面不平行，而D可以看作比较省略主语。不知道大家觉得对不对？

说实话, 我在E和D之间摆动. 我看D也不错. 要是考试我就选D.

E那种方式我没见过, 可是没见过的不见得不对.等NN来讲解, 我语法都是跟着感觉走的.

还是老问题

省略的意义是什么?

我个人认为除了避免重复以外,能够省略的应该都是同样的东西才能省略

有一题汽车的题 cars emit ………more than those on the street, 应为两种car不同

所以补出those

cars …..more efficient than those in production history…年代不同所指的同一类东西,也不应该被当成同样的东西而被省略

所以e除了charging 令人感到狐疑以外,我认为补出those是比较正确的做法

请指教

谢谢leeon，找到了，贴在这里：

http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=63572