巴戟天的功效是（）
A.补肾阳，祛风除湿
B.补肝肾，调冲任
C.补肝肾，益精血
D.补肝肾，托疮毒
E.收敛固涩、益气生津
参考答案：A
— Sorry, Professor Smith. I didn't finish the assignment yesterday.
— Oh, you ________ have done it as yesterday was the deadline.[ ]
A. must
B. mustn't
C. should
D. shouldn't
什么是湿法熄焦？包括哪些装置？
