题目内容
设全集U={1,2,3,4,5,6,7},P={1,2,3,4,5},Q={3,4,5,6,7},则P∩(C∪Q)=( )(A) {1,2} (B) (3,4,5} (C) {1,2,6,7} (D) {1,2,3,4,5}
A
解析:∵UQ={1,2},∴P∩
UQ={1,2}.

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题目内容
设全集U={1,2,3,4,5,6,7},P={1,2,3,4,5},Q={3,4,5,6,7},则P∩(C∪Q)=( )(A) {1,2} (B) (3,4,5} (C) {1,2,6,7} (D) {1,2,3,4,5}
A
解析:∵UQ={1,2},∴P∩
UQ={1,2}.