单项选择题

A.0.2~3.0r/min,0.1m3/(m3·min)
B.0.1~0.5r/min,1m3/(m3·min)
C.3.0~4.0r/min,0.5m3/(m3·min)
D.2.5~3.5r/min2.2m/(m3·min)