患者女,52岁,气短3个月,胸片显示右上纵隔增宽,右上叶主支气管狭窄,应考虑()
A.肺结核
B.大叶性肺炎
C.中心型肺癌
D.霉球性肺炎
E.炎性假瘤
参考答案:C
This is ______ most interesting story and I plan to read it ______ second time.
A.a; a
B.a; the
C.the; the
D.the; a
釉柱的直径平均为多少()
A.7μm
B.2~4μm
C.2~3μm
D.3~4μm
E.4~6μm