A. 0.1~0.5取0,0.6~0.9取1.0 B. 0.1~0.5取0.5,0.6~0.9取1.0 C. 0.1~0.5取0,0.6~0.9取0.5 D. 0.1~0.5取0.5,0.6~0.9取0.5