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(-1,1,0) (1,-1,0) (0,-1,1) (-1,0,1)
{0,1} {-1,0,2} {-1,0,1,2} {-1,0,1}
={-1,0,1},B={x|-1≤x<1},则A.∩ =( ) A.{0} B.{-1,0} {0,1} {-1,0,1}
(1,0,0) (0,1,0) (0,0,1) (1,1,1)
(0,1) (-1,0) (0,-1) (1,0)
={0,1},则∁U.A.=( ) A.{﹣1} {﹣1,0,1} {﹣1,0} {﹣1,1}
{0,1} {﹣1,0,1,2} {﹣1,0,2} {﹣1,0,1}
(-1,1,0) (1,-1,0) (0,-1,1) (-1,0,1)
a>0,b>1 a<﹣1,b>1 ﹣1≤a<0,b>1 a<0,b>0
={-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}