A.0.5~1.0 B.1.0~2.0 C.2.0~3.0 D.3.0~4.0
A.0.1~0.2 B.0.2~0.3 C.0.3~0.4 D.2.0~3.0
A.70%~90% B.65%~95% C.70%一95% D.60%~90%