单项选择题
A.肾盂积水 B.肾结石 C.尿路狭窄 D.肾部肿瘤 E.肾功能严重损伤
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
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