肾的生理特性是（）
A.宣发肃降
B.升清降浊
C.主蛰守位
D.喜燥恶湿
E.喜润恶燥
参考答案：C
This is the last time that we _____ late for class.[ ]
A .had been
B. are
C. were
D. have been
检查眼底宜用
A．毛果芸香碱B．东莨菪碱C．毒扁豆碱D．哌仑西平E．后马托品
