The teacher asked a difficult question, but Tom finally managed to___________a good answer.

A．put up with

B．keep up with

C．come up with

D．go through with

蛤粉炒鹿角胶的目的是（）

A.降低药物毒性

B.利于贮存保管

C.缓和药物性能

D.协同止血作用

E.温补肝肾，便于服用