A.20 B.30 C.45 D.60
A.0.1 B.0.2 C.0.5 D.1.0
3天;5天
A.30% B.40% C.50% D.60%
A.10%,1,50% B.20%,5,50% C.10%,1,100% D.20%,5,100%