A.5min,1/2; B.5min,1/4; C.10min,1/3; D.10min,1/4
A.80~120mm,30mmB.800~120mm,20mmC.120~160mm,30mmD.120~160mm,20mm
A.28d,14d; B.28d,28d; C.42d,28d; D.42d,42d