A.300~325mmH20 B.70~180mmH20 C.250~300mmH20 D.180~200mmH20 E.200~250mmH20
A.10% B.8% C.7% D.6% E.5%
A.10ml/(100g·min) B.15ml/(100g·min) C.22ml/(100g·min) D.31ml/(100g·min) E.34ml/(100g·min)