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={0,1,3,5,8},集合 ={2,4,5,6,8}, 则为 ( ) A.{5,8}B.{7,9} {0,1,3} {2,4,6}
{1,2,3,4,6} {1,2,3,4,5} {1,2,5} {1,2}
={0,1,3,5,8},集合 ={2,4,5,6,8},则 ( ) A.{5,8}B.{7,9} {0,1,3} {2,4,6}
{0} {0,1} {-1,1} {-1,0,0}
{1,2,4} {2,3,4} {0,2,4} {0,2,3,4}
0或 0或3 1或 1或3
={x|x2-x-2<0},B={x|-1B.A A.=B A.∩B=
={-1,1}, ={0,2},则集合{z︱z=x+y,x∈A.,y∈B.}中的元素的个数为 A.5 B.4 3 2
={-1,1},B={0,2},则集合{z︱z=x+y,x∈A,y∈B}中的元素的个数为 ( ) A.5 4 3 2
={x|1<x<4},集合B ={x|-2x-3≤0}, 则A.∩(CRB)= A. .(1,4) (3,4) (1,3) .(1,2)∪(3,4)
{0} {0,1} {-1,1} {-1,0,0}
={0,1,3,5,8},集合 ={2,4,5,6,8},则为 A.{5,8} B.{7,9} {0,1,3} {2,4,6}