月经先期的病因病机为（）
A.肾虚与脾虚
B.脾虚与肝郁
C.气虚与血热
D.气虚与血瘀
E.气虚、血热与血瘀
参考答案：C
—_____will your sister be back ?
—In about two hours.
A．How
B．How often
C．How long
D．How soon
糖尿病小鼠
