An unemployed Iranian man threw his shoes at President Mahmoud Ahmadinejad while the leader________ a speech.

A．delivered

B．was delivering

C．would deliver

D．had delivered

关于中药调剂工作制度叙述错误的是（）

A.非当日处方如医师未特殊注明可以调配

B.审方计价人员无权修改医师处方

C.计价时应使用黑色或蓝色钢笔、圆珠笔

D.调配人员对所调配的饮片质量负有检查的责任

E.一张处方最好由一人全程调配