单项选择题
A.血气胸B.哮喘C.闭合性气胸D.肋骨骨折E.开放性气胸
A.大叶性肺炎B.哮喘C.肺水肿D.胸腔积液E.气胸
A.5minB.10minC.1minD.15minE.20min
A.20-30cmH2OB.30-40cmH2OC.10-20cmH2OD.40-50cmH2OE.50-60cmH2O
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