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题目内容
设全集U={1,2,3,4,5,6,7,8},A={2,4,5},B={1,2,6},则集合{3,7,8}是( )
A.(C
∪
A)∩(C
∪
B)
B.(C
∪
A)∪(C
∪
B)
C.A∪B
D.A∩B