A.肺通氣機(jī) B.復(fù)蘇器 C.呼吸治療通氣機(jī) D.體外通氣機(jī) E.電刺激器
A.3~8s B.7~15s C.10~20s D.15~30s E.20~30s
A.1:1 B.1:1.5 C.1:2 D.1:2.5 E.1:3