设集合A={1,2},B={1,2,3},C={2,3,4},则A∪(B∩C)等于[ ]A.{1,2,3}B.{1,2,4} C.{2,3,4} D.{
题型:单选题难度:简单来源:模拟题
设集合A={1,2},B={1,2,3},C={2,3,4},则A∪(B∩C)等于 |
[ ] |
A.{1,2,3} B.{1,2,4} C.{2,3,4} D.{1,2,3,4} |
答案
A |
举一反三
设集合A={x|y=ln(1-x)},集合B={y|y=x2},则A∩B= |
[ ] |
A.[0,1] B.[0,1) C.(-∞,1] D.(-∞,1) |
设集合U={-2,-1,0,1,2},A={-1,2},B={-2,2},则(CUA)∪B等于 |
[ ] |
A.{-2,0,1} B.{-2,0,2} C.{-1,0,1,2} D.{-2,0,1,2} |
已知集合M={0,1},集合T={0,1,2},那么集合M∪T= |
[ ] |
A.{2} B.{0,1} C.{0,1,2} D.{0,1,0,1,2} |
已知全集U=R,设函数y=lg(x-1)的定义域为集合A,函数y=的定义域为集合B,则A∩(CUB)= |
[ ] |
A.[1,2] B.[1,2) C.(1,2] D.(1,2) |
已知集合A={x∈R|0<x<3},B={x∈R|x2≥4},则A∩B= |
[ ] |
A.{x|2<x<3} B.{x|2≤x<3} C.{x|x≤-2或2≤x<3} D.R |
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