A.分計(jì)篩余 B.累計(jì)篩余 C.細(xì)度模數(shù) D.篩余量
A.2.32 B.2.30 C.2.3 D.此結(jié)果無(wú)效
A.>0.30 B.>0.20 C.<0.30 D.<0.20