---Where _______ my book ? I can't see it anywhere. 

--- I _______ it on this table . But now it's gone .

A were you putting ; have put           B. had you put ; was putting 

C have you put ; put                     D. did you put ; have put 

药价虚高，有目共睹。一些常用药品出厂价和医院零售价之间存在巨大差价，

中间利润甚至超过6500%。治理药价虚高要

A．实施宏观调控，杜绝市场自发性

B．运用行政手段，限制药品价格

C．完善市场规则，维护市场秩序

D．减少药品价值，降低销售价格