肾水亏之咳嗽，多表现为：（）
A.夜间咳甚
B.咳声不扬
C.咳声低微
D.咳声重浊
E.天亮咳甚
参考答案：A
They ____________ on a trip in February, 2007.[ ]
A. are going
B. going
C. went
什么是误操作？有那几种类型？
