已知全集U={1,2,3,4,5,6,7,8},M ={1,3,5,7},N ={5,6,7},则(CUM)∩( CUN)=[ ]A.{5,7} B.{
题型:单选题难度:简单来源:0119 期中题
已知全集U={1,2,3,4,5,6,7,8},M ={1,3,5,7},N ={5,6,7},则(CUM)∩( CUN)= |
[ ] |
A.{5,7} B.{2,4} C.{2,4,8} D.{1,3,5,6,8} |
答案
C |
举一反三
已知全集U={0,1,2,3,4},M={0,1,2},N={2,3},则(CUM)∩N= |
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A、{2} B、{3} C、{2,3,4} D、{0,1,2,3,4} |
设A={x|x2-x-2=0},B={x|x-2<0},则A∩B= |
[ ] |
A.{-1} B.{1} C.{-1,2} D.{1,-2} |
已知集合A={1,2,3},B={2,m,4},A∩B={2,3},则m=( ) |
全集U={1,2,3,4,5},M={1,3,4},N={2,4,5},则CU(M∪N)= |
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A. B.{4} C.{1,3} D.{2,5} |
已知集合A={x|x2-5x-6=0},集合B={x|x2-x-6=0},全集U={-2,-1,0,3,6},求A∪B,A∩B,(CUA)∩(CUB)。 |
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