标题: 天山SC一题求解答 [打印本页] 作者: houhaibo528 时间: 2011-9-24 09:07 标题: 天山SC一题求解答 A new hair-growing drug is being sold for 3 times the price, per milligram, as the drug's maker charges for another product with the same active ingredient. A.as B.than C.that D. of what E. at which 希望NN帮我仔细讲一讲这几个选项，一直不是特别清楚，多谢作者: houhaibo528 时间: 2011-9-24 22:34
自顶，求解答