单项选择题
A.1 B.2 C.3 D.0
(2+0.24+0.46)×(0.2.4+0.46+0.68)-(2+0.24+0.46+0.68)×(0.2...
单项选择题(2+0.24+0.46)×(0.2.4+0.46+0.68)-(2+0.24+0.46+0.68)×(0.24+0.46)=()。
A.2 B.1.36 C.0.68 D.0.46
150,30,3,3/15,1/100,()A.1/2500B.1/2250C.3D.1/1750
单项选择题150,30,3,3/15,1/100,()
A.1/2500 B.1/2250 C.3 D.1/1750
3/6,3/9,6/12,6/18,2/24,2/36,()A.16/48B.24/48C.20/50D.25...
单项选择题3/6,3/9,6/12,6/18,2/24,2/36,()
A.16/48 B.24/48 C.20/50 D.25/42