设集合X={0,1,2,4,5,7},Y={1,3,6,8,9},Z={3,7,8},那么集合(X∩Y)∪Z是(  )A.{0,1,2,6,8}B.{3,7,8

设集合X={0,1,2,4,5,7},Y={1,3,6,8,9},Z={3,7,8},那么集合(X∩Y)∪Z是(  )A.{0,1,2,6,8}B.{3,7,8

题型:单选题难度:一般来源:不详
设集合X={0,1,2,4,5,7},Y={1,3,6,8,9},Z={3,7,8},那么集合(X∩Y)∪Z是(  )
A.{0,1,2,6,8}B.{3,7,8}C.{1,3,7,8}D.{1,3,6,7,8}
答案
X∩Y={1},(X∩Y)∪Z={1,3,7,8},
故选C
举一反三
已知集合A={y|y=2-x,x<0},B={x|y=x
1
2
},则A∩B
=(  )
A.[1,+∞)B.(1,+∞)C.(0,+∞)D.[0,+∞)
题型:单选题难度:一般| 查看答案
若集合A={x|
6
x+5
>1}
,集合B={-1,0,1,2,3},则A∩B=______.
题型:填空题难度:一般| 查看答案
设A={x|x>-2},B={x|x≥3},则A∪B=______.
题型:填空题难度:一般| 查看答案
已知集合A={1,2,3,4},B={2,4,6},则A∩B=(  )
A.2B.2,4C.2,4,6D.1,2,3,4,6
题型:单选题难度:简单| 查看答案
若集合M={0,1},I={0,1,2,3,4,5},则CIM为(  )
A.{0,1}B.{2,3,4,5}C.{0,2,3,4,5}D.{1,2,3,4,5}
题型:单选题难度:一般| 查看答案
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