题目

设集合P={1,2,3,4,5,6},Q={x∈R|2≤x≤6}，那么下列结论正确的是(　　)A.P∩Q=P                                  B.P∩QQC.P∪Q=Q                                  D.P∩QP 答案：解析:P∩Q={2,3,4,5,6}，∴P∩QP.答案:D

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