问题 单项选择题 B型题

导致慢性肺心病最常见的病因是()

A.肺脓肿

B.慢性阻塞性肺病

C.反复发生的肺小动脉栓塞

D.先天性肺囊肿

E.支气管扩张

答案

参考答案:B

写作题

Writing.

根据题意,完成下面一则通知。

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                                                                                                        June 22

单项选择题