[问答题]F(x)≥0,求f(x).
[判断题]A.对B.错
[单选题]A.2.00mB.1.50mC.1.00mD.0.50m
[单选题]A.甲、乙、丙B.乙、丙、甲C.丙、乙、甲D.乙、甲、丙
[单选题]A.B.C.D.
[单选题]A.直线回归分析B.等级相关分析C.直线相关分析D.秩和检验E.方差分析