清热剂
参考答案：
清热剂：是指以清热药为主组成，具有清热、泻火、凉血、解毒和清退虚热等作用，治疗里热证的方剂。
下列各项，属经行情志异常心血不足证临床表现的是（）
A.面红目赤，溲黄便结
B.经色深红，质稠黏
C.抑郁不乐，头晕目眩
D.无故悲伤，心悸失眠
E.舌红，苔黄，脉弦数
---______ the farmers discovered the entrance to the secret cave in the valley?
--- Totally by chance.
A．When was it that
B．How was it that
C．How it was that
D．When it was that
