题目内容
设全集U={1,2,3,4,5,6},A={4,5},B={3,4},则![]()
[ ]
A.{3,4,5}
B.{1,2,3,4,6}
C.{1,2,6}
D.{1,2,3,5,6}
答案:C
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题目内容
设全集U={1,2,3,4,5,6},A={4,5},B={3,4},则![]()
A.{3,4,5}
B.{1,2,3,4,6}
C.{1,2,6}
D.{1,2,3,5,6}