1.设集合 A∪(CUB)=( ) {2} (D){0.1.2} 查看更多

 

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设集合U={-2,-1,0,1,2},A={1,2},B={-2,-1,2},则A∪(CUB)等于

[  ]
A.

{1,-2,2}

B.

{1,2}

C.

{2,-1,1}

D.

{0,1,2}

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设集合U={(x,y)|x∈R,y∈R},A={(x,y)|2x-y+m>0},B={(x,y)|x+y-n≤0},那么点P(2,3)∈A∩(CUB)的充要条件是

[  ]
A.

m>-1且n<5

B.

m<-1且n<5

C.

m>-1且n>5

D.

m<-1且n>5

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设集合U={(x,y)|x∈R,y∈R},A={(x,y)|2x-y+m>0},B={(x,y)|x+y-n≤0},那么点P(2,3)∈A∩(CUB)的充要条件是

[  ]
A.

m>-1n<5

B.

m<-1n<5

C.

m>-1n>5

D.

m<-1n>5

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设集合U={0,1,2,3,4},A={1,2,3},B={2,0},则A∩(CUB)=


  1. A.
    {2}
  2. B.
    {2,3}
  3. C.
    {1,3}
  4. D.
    {3}

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设集合U={0,1,2,3,4},A={1,2,3},B={2,0},则A∩(CUB)=
[     ]
A.{2}
B.{2,3}
C.{1,3}
D.{3}

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