题目

----I’m afraid I can only make a small contribution this time. ----________. We really appreciate your assistance. A. Every little helps B.The more, the better C.It’s better to give than to receive D.The best things come in small packages 答案：A小明买苹果和梨共5千克，用去17元，其中苹果每千克4元，梨每千克3元，问苹果和梨各买了多少千克？