题目内容
设全集U={1,2,3,4,5,6,7},P={1,2,3,4,5},Q={3,4,5,6,7},则P∩(
Q)等于
[ ]
A.{1,2}
B.{3,4,5}
C.{1,2,6,7}
D.{1,2,3,4,5}
答案:A
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题目内容
设全集U={1,2,3,4,5,6,7},P={1,2,3,4,5},Q={3,4,5,6,7},则P∩(
Q)等于
A.{1,2}
B.{3,4,5}
C.{1,2,6,7}
D.{1,2,3,4,5}