题目内容
已知全集U={1,2,3,4,5,6},集合P={1,2,3,4},Q={2,3,4,6},则中的元素个数为 ( )
A.0 B.1 C.3 D.5
B
(07年福建卷文)已知全集U=|1,2,3,4,5|,且A={2,3,4},B={1,2},则(CUB)等于
A.{2} B.{5} C.{3,4} D.{2,3,4,5}
(A){5} (B){1,5} (C){2,3,4} (D ){1,2,3,4}
已知全集U={1,2,3,4,5,6},A={1,2,3,4},B={3,4,5,6},那么U(A∩B)=( )
A.{3,4} B.{1,2,5,6}
C.{1,2,3,4,5,6} D.
已知全集 U={1,2,3,4,5},A={1,5},BCUA,则集合B 的个数是( )
A.5 B. 6 C. 7 D. 8
已知全集U={1,2,3,4,5,6,7,8},M={1,3,5,7},N={5,6,7},则Cu(M∪N)= ( )
A.{5,7} B.{2,4} C.{2,4,8} D.{1,3,5,6,7}