清热固经汤用于：（）
A.虚热型崩漏
B.肾阴虚型崩漏
C.脾虚型崩漏
D.实热型崩漏
E.血瘀型崩漏
参考答案：D
如果9-mx+x2是一个完全平方式，则m的值为______．
—Why does he look so tired these days?
—Because he is _____too much pressure. [ ]
A. in
B. on
C. under
D. before
