标题: 为什么选c啊 谁能解释此题 [打印本页] 作者: brianfang 时间: 2010-6-24 17:26 标题: 为什么选c啊 谁能解释此题 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.
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作者: CharieBrown 时间: 2010-6-25 01:44
the drug's maker charges ( the price) for another product with the same active ingredient
