Under no circumstances in the last three months______ for leave because of personal affairs．

A．did she ask

B．she asked

C．has she asked

D．she has asked

对药事管理来说，药品与食品等其他商品区别的最基本点是

A．批准文号

B．批准部门

C．特殊性

D．管理方法

E．使用目的和使用方法