可以由省级药品监督管理部门制定的药品标准是（）
A.中国药典
B.炮制标准
C.药品注册标准
D.行业标准
参考答案：B
I _____ my homework while my parents _____ TV last night. [ ]
A. did; have watched
B. was doing; were watching
C. had done; were watching
D. would do; were watching
Vous n’avez pas fait tous les efforts que vous (devoir)_____ faire.
