中药治病的基本原理是（）。

A.四气五味

B.祛除除病邪

C.消除病因

D.调整脏腑功能

E.纠阴阳偏胜偏衰

Karen was always thinking we were talking about his poor past. Every time we were chatting together, he would be all _____.

A．over

B．ears

C．lone

D．through