已知集合S={x∈R|x+1≥2},T={-2,-1,0,1,2},则S∩T=[ ]A.{2}B.{1,2}C.{0,1,2} D.{-1,0,1,2}
题型:单选题难度:简单来源:天津高考真题
已知集合S={x∈R|x+1≥2},T={-2,-1,0,1,2},则S∩T= |
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A.{2} B.{1,2} C.{0,1,2} D.{-1,0,1,2} |
答案
B |
举一反三
已知全集U={1,2,3,4,5},集合A={x∈Z 题型:x-3|<2},则集合CUA等于 |
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A.{1,2,3,4} B.{2,3,4} C.{1,5} D.{5} |
难度:|
查看答案 若集合M={0,1},I={0,1,2,3,4,5} ,则CIM为 |
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A.{0,1} B.{2,3,4,5} C.{0,2,3,4,5} D.{1,2,3,4,5} |
设集合A={(x,y)|y≥|x-2|,x≥0},B={(x,y)|y≤-x+b},A∩B≠, (1)b的取值范围是( ); (2)若(x,y)∈A∩B,且x+2y的最大值为9,则b的值是( )。 |
如果U={x|x是小于9的正整数},A={1,2,3,4},B={3,4,5,6},那么(CUA)∩(CUB)= |
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A.{1,2} B.{3,4} C.{5,6} D.{7,8} |
设集合M={4,5,6,8},集合N={3,5,7,8},那么M∪N= |
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A.{3,4,5,6,7,8} B.{5,8} C.{3,5,7,8} D.{4,5,6,8} |