慢性支气管炎可导致()
A．支气管扩张症
B．肺气肿
C．支气管腔狭窄
D．肺癌
E．肺出血性梗死
参考答案：A, B, C
Please don't forget ______ the flowers to Mrs Wang. It's her birthday today.[ ]
A. send
B. sending
C. will send
D. to send
“寒极生热”说明了阴阳之间的何种关系
A．阴阳交感
B．阴阳互根
C．阴阳消长
D．阴阳对立
E．阴阳转化
