有祛风化痰、通络止痉功效的方剂是()
A.牵正散
B.大秦艽汤
C.小活络丹
D.独活寄生汤
E.羌活胜湿汤
参考答案:A
I am quite busy. I don't know _____ I will have time or not tonight.[ ]
A. if
B. weather
C. whether
D. when
人员推销有哪些职能?