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{0,1,2} {1,2,3} {1,2} {2,3}
={1,2,3,4,5},,图中阴影部分所表示的集合为( ) A.{1} {1,2} {1,2,3} {0,1,2}
{1,2,3} {0,1,1,2,2,3} {0,1,2,3} {1,2}
={x|≤0}, ={0,1,2,3},则A.∩B.=( ) A.{1,2}B.{0,1,2} {1} {1,2,3}
{1,2} {2,3} {0,1,2} {1,2,3}
{0,1,2} {0,2} {2} {1,2,3}
{2,3} {0,1,2} {1,2,3} {0,1}
{1,2,3} {0,2,3} {0,1,2} {0,1,3}
={0,1,2,3}, ={x|x(x-3)<0},则A.∩B.= ( ) A.{0,1,2,3}B.{0,1,2} {1,2} {1,2,3}
{0} {1,2} {1,2,3} {0,1,2,3}
{-1} {0,1} {-1,2,3} {-1,0,1,3}
{1,2} {0,1,2} {1} {1,2,3}
{0,1} {0,1,2} {1,2} {1,2,3}
={0,1,2}, ={2,3},则集合A.∪B.=( ) A.{1,2,3}B.{0,1,2,3} {2} {0,1,3}
{0,1,2} {0,1,3} {0,2,3} {1,2,3}
{2,3} {1,2,3} {1,-1,2,3} {2,3,x,y}
={2,3},集合 ={0,1},则A.∪B.等于( ) A.∅ B.{1,2,3} {0,1,2} {0,1,2,3}