A.1.0~1.2倍B.1.2~1.5倍C.1.5~1.8倍D.1.8~2.0倍
A.0.4~0.6倍B.0.6~0.8倍C.0.8~1.0倍D.1.0~1.2倍
A.15~20%B.10~20%C.20~25%D.25~30%