明矾主治
A．吐衄下血
B．疮疡，疥癣，湿疹瘙痒
C．风痰癫痫，痰热癫狂
D．湿热黄疸
E．泻痢不止
参考答案：A,B,C,D,E
The old man lonely at all since we began to visit him once a week. [ ]
A. hasn't felt
B. don't feel
C. didn't feel
D. haven't felt
半通膜限制颗粒通过是由于（）
A.膜孔大小
B.颗粒大小
C.生物泵使用
D.膜两侧渗透压高低不同
E.均正确
