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{1} {2,3} {1,2,4} {2,3,4}
={1,2}, ={2,3},则∁U.(A.∪B.)等于( ) A.{1,3,4}B.{3,4} {3} {4}
={0,2},则集合A.的真子集共有( ) A.3个 4个 5个 6个
={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}
{1} {0,1,2} {1,2,3} {0,1,2,3}
={1,2,3,4,5}, ={x∈R|x≥2},则右图中阴影部分所表示的集合为( ) A.{1} B.{0,1} {1,2} {0,1,2}
={1,2}, ={2,3},则∁U.(A.∪B.)=( ) A. {1,3,4}B. {3,4} {3} {4}
={0},则集合A.=( ) A.{0,1,2} {1,2} U. ∅
{3} {0,1,2} {1,2} {0,1,2,3}
{3} {0,1} {0,1,2} {0,1,2,3}
={1,2,3}, ={x|﹣1<x<3,x∈Z.},则A.∪B.等于( ) A.{1}B.{1,2} {0,1,2,3} {1,2,3}
={1,2}, ={2,3},则∁U.(A.∪B.)=( ) A.{1,3,4}B.{3,4} {3} {4}
∩∁U. ={1,2},∁U.(A.∪B.)={4},则集合B.为( ) A.{3}B.{3,5} {2,3,5} {1,2,3,5}
{1,2} {5} {1,2,3} {3,4,6}