单项选择题
A.0.5~1.5L/minB.0.5~1.0L/minC.1.5~2.0L/minD.1.5~2.5L/min
A.1.5~2.5L/minB.2~3.5L/minC.2.5~3.5L/minD.3~4.5L/min
A.6~7L/minB.5~7L/minC.5~8L/minD.4〜6L/min