问题
选择题
设全集U={1,2,3,4,5},集合A={1,2},B={2,3},则A∩CUB=
A.{4,5}
B.{2,3}
C.{1}
D.{2}
答案
答案:C
解:因为全集U={1,2,3,4,5},集合A={1,2},B={2,3},则A∩CUB={1},选C
设全集U={1,2,3,4,5},集合A={1,2},B={2,3},则A∩CUB=
A.{4,5}
B.{2,3}
C.{1}
D.{2}
答案:C
解:因为全集U={1,2,3,4,5},集合A={1,2},B={2,3},则A∩CUB={1},选C