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标题: GWD23-8 [打印本页]

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作者: debralee    时间: 2008-4-27 15:28
标题: GWD23-8

请教NN们：下面题目的答案是D，可为什麽C不行？

Q8:

A new hair-growing drug is being sold for three times the price, per milligram, as the drug’s maker charges for another product with the same active ingredient.

 

1. as

2. than

3. that

4. of what

5. at which

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作者: yaozo    时间: 2008-4-27 15:42
The answer of it should be C but not D.

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