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{﹣2,﹣1,0,1,2} {﹣1,0,1,2} {﹣1,0,1,2,3} {﹣2,﹣1,0,1,2,3}
-2,-1,0,1,2,3 -1,0,1,2 -2,-1,0,1,2,3 -1,0,1,2,3
{﹣1,0,1,2} {﹣2,﹣1,0,1} {0,1} {﹣1,0}
{1,2,3} {0,1,2,3} {-2,-1,0,1,2} {-3,-2,-1,0,1,2,3}
{﹣1,0,1,2} {x|﹣1<x<3} {0,1,2} {﹣1,0,1}
{x|﹣1≤x≤2} {﹣1,0,1,2} {﹣1,2} {0,1}
={x|x2-x-2≤0},集合 为整数集,则A.∩B.=( ) A.{-1,0,1,2}B.{-2,-1,0,1} {0,1} {-1,0}
{0,1,2} {﹣1,0,1,2} {﹣1,0,2,3} {0,1,2,3}
{﹣1,0,1,2} {﹣2,﹣1,0,1} {0,1} {﹣1,0}
={﹣3,﹣2,﹣1,0,1,2}, ={x|x≥1},则A.∩∁U.B.=( ) A.{1,2}B.{﹣1,0,1,2} {﹣3,﹣2,﹣1,0} {2}
﹣2,﹣1,0,1,2,3 ﹣1,0,1,2,3 ﹣2,﹣1,0,1,2,3 ﹣1,0,1,2
{1,2} {0,1,2} {0,1} {﹣1,0,1,2}
{2} {1,2} {0,1,2} {-1,0,1,2}
-2,-1,0,1,2,3 -1,0,1,2,3
-2,-1,0,1,2,3 -1,0,1,2
(-2,2) (1,2) -1,0,1 -2,-1,0,1,2
{﹣1,0,1,2} {﹣2,﹣1,0,1,2} {x|﹣3≤x≤2,x∈Z} {x|﹣1≤x<4,x∈Z}
={-2,-1,0,1,2},B={x|(x -1)(x+2)<0},则A.∩B=( ) A. {--1,0} {0,1} {-1,0,1} {,0,,1,2}