一、选择题
1.已知全集U={0,1,2},且∁UA={2},则集合A等于导学号18160106 ( )
A.{0} B.{1}
C.{0,1} D.∅
[答案] C
[解析] ∵∁UA={2},且U={0,1,2},∴A={0,1}.
2.(2015·安徽高考)设全集U={1,2,3,4,5,6},A={1,2},B={2,3,4},则A∩(∁UB)=
导学号18160107 ( )
A.{1,2,5,6} B.{1}
C.{2} D.{1,2,3,4}
[答案] B
[解析] ∵∁UB={1,5,6},∴A∩(∁UB)={1},∴选B.
3.(2016·山东文,1)设全集U={1,2,3,4,5,6},A={1,3,5},B={3,4,5},则∁U(A∪B)=
导学号18160108 ( )
A.{2,6} B.{3,6}
C.{1,3,4,5} D.{1,2,4,6}
[答案] A
[解析] ∵A∪B={1,3,4,5},∴∁U(A∪B)={2,6},故选A.
4.设全集U={x∈Z|-1≤x≤5},A={1,2,5},B={x∈N|-1<x<4},则B∩(∁UA)=