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={x|x2-2x=0}, ={0,1,2},则A.∩B.= ( ) A.{0,2}B.{0,1} {0} {0,1,2}
{0,1} {0,2} {1,2} {0,1,2}
={x|x2-2x=0}, ={0,1,2},则A.∩B.=( ) A.{0}B.{0,1} {0,2} {0,1,2}
={0},则集合A.=( ) A.{0,1,2} {1,2} U. ∅
={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} {0,1,2} {-1,0,1} {-1,0,1,2}
{0,1} {-1,0,2} {-1,0,1,2} {-1,0,1}
{0,1} {﹣1,0,1,2} {﹣1,0,2} {﹣1,0,1}
{0,1} {-1,0,1} {0,1,2} {-1,0,1,2}
{2} {1,2} {0,1,2} {0,1,2,3}
{0,1} {﹣1,0,1} {0,1,2} {﹣1,0,1,2}
={0,1,2},集合 ={x|x=2m,m∈N},则A.∩B=( ) A.{0}B.{0,2} {0,4} {0,2,4}