题目内容
(请给出正确答案)
[单选题]
It was _______ for you to have made the remarks at the meeting.
A.out of order
B.out of place
C.out of sight
D.out of thought
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B.out of place
C.out of sight
D.out of thought
设随机变量(X,Y)的分布列为
则P|Y<x|为0.6。()
A.正确
B.错误
A.if(x==y);
B.if(x==y) x+y;
C.if(x!=y) scanf(“%d”,x) else scanf(“%d”,y);
D.if(x==y) {x++;y++;}
A.x数组和y数组的长度相同
B.x数组长度大于y数组长度
C.x数组长度小于y数组长度
D.x数组等价于y数组
A.E(X+Y)=E(X)+E(Y)
B.D(X+Y)=D(X)+D(Y)
C.E(XY)=E(X)E(Y)
D.D(XY)=D(X)D(Y)
A.正确
B.错误