延胡索的原植物科名和药用部位是（）
A．唇形科，根茎
B．百合科，块根
C．毛茛科，根
D．罂粟科，块茎
E．豆科，块根
参考答案：D
— I'm going to San Francisco for a couple of days.
— I wish I could get away for a while.
A．It doesn't matter
B．Forget it
C．I really envy you
D．I can't agree more
轮箍的外型由（）和踏面组成。
