设全集U={1,2,3,4,5,6,7},M={2,3,4,6},N={1,4,5},则{1,5}等于( )A.M∪NB.M∩NC.
设全集U={1,2,3,4,5,6,7},M={2,3,4,6},N={1,4,5},则{1,5}等于()A.M∪NB.M∩NC.(?UM)∩ND.M∩?UN...
设全集U={1,2,3,4,5,6,7},M={2,3,4,6},N={1,4,5},则{1,5}等于( )A.M∪NB.M∩NC.(?UM)∩ND.M∩?UN
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