问题
选择题
已知集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(CUA)∪(CUB)等于[ ]
A.{1,6}
B.{4,5}
C.{1,2,3,4,5,7}
D.{1,2,3,6,7}
答案
答案:D
已知集合U={1,2,3,4,5,6,7},A={2,4,5,7},B={3,4,5},则(CUA)∪(CUB)等于[ ]
A.{1,6}
B.{4,5}
C.{1,2,3,4,5,7}
D.{1,2,3,6,7}
答案:D