醇沉操作时应注意的问题不包括
A．药液浓度
B．沉淀洗涤
C．药液温度
D．醇沉浓度
E．醇沉容器
参考答案：E
瞳孔散大多为（）
A.津液耗伤
B.气血不足
C.脾胃虚衰
D.心气虚弱
E.肾精耗竭
No one knows ________ [ ]
A. where is the post office
B. where the post office is
C. the place is the post office
D. the post office is the place
