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已知集合U={1,2,3,4},A={2,4},B={3,4},则(∁UA)∪B...
已知集合U={1,2,3,4},A={2,4},B={3,4},则(∁UA)∪B=( )
A.{3}
B.{1,3,4}
C.{2,3,4}
D.{1,2,3,4,}
考点分析:
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