鼻導(dǎo)管吸氧,氧流量為3L/min,F(xiàn)iO2是()
A.0.24 B.0.28 C.0.33 D.0.36 E.0.40
A.1:(0.5~2) B.1:(1.5~2) C.1:(1.0~3) D.1:(0.5~1) E.1:(1.5~2.5)