不属于湿性咳嗽的常见病因的是（）
A.慢性支气管炎
B.支气管扩张症
C.空洞型肺结核
D.肺脓肿
E.肺癌
参考答案：E
解析：肺癌多表现为干性咳嗽。
— Have you got any chocolate?
—__________.
A．Yes, we haven’t.
B．No, we haven’t.
C．Yes, have.
D．No, have not.
Leaders of many countries have been trying to __________ what it is that makes China develop so fast.[ ]
A. carry out
B. figure out
C. watch out
D. make out
