A.2ml/(kg.h)B.5ml/(kg·h)C.8ml/(kg.h)D.10ml/(kg.h)E.15ml/(kgh)
A.A-B手法B.B-C手法C.E-C手法D.E-B手法E.E-D手法
A.5sB.10sC.12sD.15sE.20s