已知全集∪={1,2,3,4,5},且A={2,3,4},B={4,5},则A∩C u B等于( ) A.{4} B.
1个回答
∵全集∪={1,2,3,4,5},
且A={2,3,4},B={4,5},
∴C
U
B={1,2,3},
∴A∩C
u
B={2,3},
故选D.
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