可引起COPD急性加重的因素有
A．吸烟
B．冷空气刺激
C．细菌感染
D．病毒感染
E．衣原体感染
参考答案：B,C,D,E
—Do you often see her?
—No, she lives in Spain, so I _________ see her. [ ]
A. often
B. hardly
C. always
D. ever
把下列的旅游景点和对应的地区连接起来。
⑥临沂
