U1234567的知识精选

设U={1,2,3,4,5,6,7,,则    ,      .
问题详情:设U={1,2,3,4,5,6,7,,则    ,      .【回答】﹛4,5,6,7﹜,﹛1,2,7﹜知识点:*与函数的概念题型:填空题...
已知全集U={1,2,3,4,5,6,7},*A={1,3,5,6},则(   )  A.{1,3,5,6}...
问题详情:已知全集U={1,2,3,4,5,6,7},*A={1,3,5,6},则(   )  A.{1,3,5,6}    B.{2,3,7}   C.{2,4,7}   D.{2,5,7}【回答】C知识点:*与函数的概念题型:选择题...
已知全集U={1,2,3,4,5,6,7},A={3,4,5},B={1,3,6},则A∩(CUB)等于()A...
问题详情:已知全集U={1,2,3,4,5,6,7},A={3,4,5},B={1,3,6},则A∩(CUB)等于()A.{4,5}         B.{2,4,5,7}       C.{1,6}       D.{3}【回答】A知识点:*与函数的概念题型:选择题...
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