每批产品应

A．按产量和数量的物料平衡进行检查

B．建立批生产记录、批检验记录、批包装记录

C．每一生产阶段完成后必须由生产操作人员清场，填写清场记录

D．经质量检验合格，方可出厂销售

E．建立销售记录，根据销售记录能追查每批药品的售出情况，必要时能及时全部追回

. She asked me ________ the film the day before.

A．if I have seen

B．whether I have seen

C．whether I had seen

D．if had I seen