- 問題詳情:設U={1,2,3,4,5,6,7,,則 , .【回答】﹛4,5,6,7﹜,﹛1,2,7﹜知識點:*與函式的概念題型:填空題...
- 24387
- 問題詳情:已知全集U={1,2,3,4,5,6,7},*A={1,3,5,6},則( ) A.{1,3,5,6} B.{2,3,7} C.{2,4,7} D.{2,5,7}【回答】C知識點:*與函式的概念題型:選擇題...
- 26107
- 問題詳情:已知全集U={1,2,3,4,5,6,7},A={3,4,5},B={1,3,6},則A∩(CUB)等於()A.{4,5} B.{2,4,5,7} C.{1,6} D.{3}【回答】A知識點:*與函式的概念題型:選擇題...
- 10168