原发型肺结核应与哪些疾病相鉴别（）
A.非典型肺炎
B.纵隔和肺门疾病
C.阻塞性肺疾患
D.肺炎
E.继发型肺结核
参考答案：B
—Why didn’t you come for the meeting?
—Only allowed by our manager .
A．I could come
B．If I could come
C．when I could come
D．could I come
肺部慢性炎症的通常表现为（）
A.渗出
B.增生
C.空洞
D.纤维化
E.钙化
