单项选择题
A.肺不张 B.胸腔积液 C.少量气胸 D.肺部肿瘤 E.中叶综合征
A.1～5s B.5～10s C.10～15s D.15～20s E.20～30s
A.5min B.10min C.15min D.30min E.40min
A.双面药膜感蓝片 B.单面药膜分色片 C.单面药膜色盲片 D.双面药膜感绿片 E.单面药膜感蓝片
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