已知全集I={1,2,3,4,5,6},A={1,2,3,4},B={3,4,5,6},那么∁I(A∩B)等于( )
A.{3,4} | B.{1,2,5,6} |
C.{1,2,3,4,5,6} | D.∅ |
更新时间:2020-01-23 11:14:46
|