A.1.8和1.7 B.1.7和1.8 C.1.2和1.3 D.1.3和1.2 E.1.7和1.3
A.20%~30% B.30%~35% C.35%~40% D.45%~50% E.50%~60%
A.10%~20% B.15%~30% C.20%~30% D.30%~40% E.35%~45%