商品粮基地分布在长江中下游地区的是[ ]
A、三江平原
B、松嫩平原
C、洞庭湖平原
D、辽河平原
答案：C
— Is that Chris speaking?
— Sorry, he isn't in. He _____ abroad on business. [ ]
A. goes
B. went
C. has gone
D. will go
寿胎丸具有补肾固冲、止血安胎之轧其药物组成不包括下列哪一味( )
A．旱莲草B．菟丝子C．续断D．桑寄生E．阿胶
