清肝引经汤治疗经行吐衄的适应证候是（）
A.肺肾阴虚证
B.湿热瘀结证
C.肝经湿热证
D.肝经郁火证
E.气滞血瘀证
参考答案：D
某二叉树有5个度为2的结点以及3个度为1的结点，则该二叉树中共有______个结点。
Prices continued to rise while wages reminded low _____ the Government became increasingly unpopular.
A．even though
B．in order that
C．with the result that
D．because
