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{1} {2,3} {1,2,4} {2,3,4}
={1,2}, ={2,3},则( ) A.{4,5} B.{2,3} {1} {2}
{1,2,3,4,6} {1,2,3,4,5} {1,2,5} {1,2}
={2,3,4}, ={4,5},则A.∩(∁UB)等于( ) A.{4} B.{4,5} {1,2,3,4} {2,3}
{1,2,3,4,6} {1,2,3,4,5} {1,2,5} {1,2}
={1,2}, ={2,3},则∁U.(A.∪B.)等于( ) A.{1,3,4}B.{3,4} {3} {4}
={1,2}, ={2,3},则A(B.)=( ) A. {2} B. {4,5} {2,3) {1}
={1,2}, ={2,3},则∁U.(A.∪B.)=( ) A. {1,3,4}B. {3,4} {3} {4}
={1,2}, ={2,3},则( ) A.{4,5} B.{2,3} {1} {2}
={1,2}, ={2,3},则∁U.(A.∪B.)=( ) A.{1,3,4}B.{3,4} {3} {4}
={x|0≤x≤2}, ={y|1≤y≤3},则(∁U.A.)∪B.=( ) A.(2,3]B.(-∞,1]∪(2,+∞) [1,2) (-∞,0)∪[1,+∞)
={x|0≤x≤2}, ={y|1≤y≤3},则(∁U.A.)∪B.=( ) A.(2,3] B.(-∞,1]∪(2,+∞) [1,2) (-∞,0)∪[1,+∞)