已知全集U=A∪B={x∈N|0≤x≤10},A∩(CUB)={1,3,5,7},则集合B=(  )A. {0,2,4,6,8,10}B. {0,2,4,6,8,9,10}C. {2,4,6,8,9,10}D. {2,4,6,8,10}

问题描述:

已知全集U=A∪B={x∈N|0≤x≤10},A∩(CUB)={1,3,5,7},则集合B=(  )
A. {0,2,4,6,8,10}
B. {0,2,4,6,8,9,10}
C. {2,4,6,8,9,10}
D. {2,4,6,8,10}

∵全集U=A∪B={x∈N|0≤x≤10}={0,1,2,3,4,5,6,7,8,9,10},
∴(A∩(CUB))∩B=φ,(A∩(CUB))∪B=U,
故B=CU(A∩(CUB))
又∵A∩(CUB)={1,3,5,7},
∴B={0,2,4,6,8,9,10}
故选B
答案解析:由已知中,全集U=A∪B,我们可得(A∩(CUB))∩B=φ,(A∩(CUB))∪B=U,根据补集的性质可得B=CU(A∩(CUB)),进而根据已知中全集U={x∈N|0≤x≤10},A∩(CUB)={1,3,5,7},得到答案.
考试点:交、并、补集的混合运算.
知识点:本题考查的知识点是集合的交、并、补集的混合运算,其中根据已知中U=A∪B,结合补集的性质,判断出B=CU(A∩(CUB)),将问题转化为求已知集合的补集问题,是解答本题的关键.