下列检查中，可确诊支气管异物的是() ["A．X线片检查","B．支气管镜检","C．磁共振检查","D．病检","E．CT扫描检查"]
混合气体总压力(P)与各组成气体分压(P1P2…Pn)的关系是() ["A．P＝P1·P2…Pn","B．P=n(P1+P2…Pn)","C．P=P1+P2…Pn","D．P=P1·P2…Pn／n","E．P=P1+P2…Pn／n"]
0．25MPa(绝对压)相当于() ["A．水下15m处的压力","B．水下25m处的压力","C．水下35m处的压力","D．25kg／cm2的压力","E．1800mmH2O的压力"]
简述气管、支气管的生理功能。
呼吸周期
下列传染病的传染途径
流行性脑脊髓膜炎()流行性乙型脑炎()霍乱()
