肺功能检查表现为阻塞性通气功能障碍的疾病有（）
A.肺囊性纤维化
B.哮喘
C.慢性支气管炎
D.支气管扩张
E.肺气肿
参考答案：B, C, E
I want to eat red apple.[ ]
A. /
B. a
C. an
— Can you answer my question?
--Sorry, I____________ . Would you repeat that question?
A．hadn’t listened
B．haven’t listened
C．don’t listen
D．wasn’t listening
