A.35%~44% B.45%~54% C.55%~64% D.65%~74% E.75%~84%
A.30ml B.40~60ml C.60~85ml D.80~100ml E.100~120ml
A.300~325mmH20 B.70~180mmH20 C.250~300mmH20 D.180~200mmH20 E.200~250mmH20