设全集U={1,2,3,4,5,6,7,8,9},A={2,3,5,7,8},B={1,2,4,7},则(C∪A)∩(C∪B)=_____
设全集U={1,2,3,4,5,6,7,8,9},A={2,3,5,7,8},B={1,2,4,7},则(C∪A)∩(C∪B)=______....
设全集U={1,2,3,4,5,6,7,8,9},A={2,3,5,7,8},B={1,2,4,7},则(C∪A)∩(C∪B)=______.
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