设M={a,0},N={1,2},且M∩N={1},则M∪N等于A.{a,0,1

发布时间:2020-07-11 07:49:40

设M={a,0},N={1,2},且M∩N={1},则M∪N等于













A.{a,0,1,2}












B.{1,0,1,2}











C.{0,1,2}











D.{a,1,2}

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C
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