A.>160/min B.>80/min C.>120/min D.60~100/min E.>100/min
A.0.12s B.0.12~0.20s C.0.22~0.24s D.0.08~0.12s E.0.10~0.12s
A.25~40/min B.10~25/min C.40~60/min D.80~120/min E.60~100/min