A.30%~40% B.40%~50% C.50%~60% D.60%~70% E.70%以上
A.40%~50% B.50%~60% C.60%~70% D.70%~80% E.80%~90%
A.20%~30% B.30%~40% C.40%~50% D.50%~60% E.60%~70%