治跌打损伤、瘀肿疼痛，便秘者最宜选用（）。

A.延胡索

B.郁金

C.乳香

D.红花

E.桃仁

It is no use trying to talk him into studying hard; he can only be         by force.

A．upset

B．harmed

C．rescued

D．persuaded