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{4,5} {2,4,5,7} {1,6} {3}
={2,4,5,7}, ={3,4,5},则( U.A.)∪(C.U.B.)=A. {1,6} B. {4,5}C. {1,2,3,4,5,7} {1,2,3,6,7}
{1,3,5,6} {2,3,7} {2,4,7} {2,5,7}
={3,4,5}, ={1,3,6},则于( ) A.{4,5} B.{2,4,5,7} {1,6} {3}
={3,4,5}, ={1,3,6},则于( ) A.{4,5} B.{2,4,5,7} {1,6} {3}
{5,7} {2,4} {2,4,8} {1,3,5,6,7}
={1,3,5,6},则∁U.A.=( ) A.{1,3,5,6} {2,3,7} {2,4,7} {2,5,7}
={1,3,5,6},则 ( ) A.{1,3,5,6} {2,3,7} {2,4,7} {2,5,7}
={2,4,5}, ={1,3,5,7},则A.∩(∁U.B.)=( ) A.{5}B.{2,4} {2,4,5,6} {1,2,3,4,5,7}
{5,7} {2,4} {1,3,5,6,7} {1,3,4,6}
={3,4,5}, ={1,3,6},那么集合{2,7}是( ) A.A.∪B.B.A.∩B. ∁U.(A.∩B.) ∁U.(A.∪B.)
={3,4,5},B={1,3,6},则A.∩(CU )等于( ) A.{4,5} B.{2,4,5,7} {1,6} {3}
{4,5} {2,4,5,7} {1,6} {3}
{1,3,5,6,7,8} {2,4,5,6,7,8} {5,6,7,8} {1,2,3,4}
={2,4,5},则∁U.A.=( ) A.∅ {1,3,5} {1,3,6,7} {1,3,5,7}
={2,3,5,6},集合 ={1,3,4,6,7},则集合=( ) A.{2,5} B.{3,6} {2,5,6} {2,3,5,6,8}
={1,3,7}, ={x|x=log2(a+1),a∈A.},则(∁U.A.)∩( (∁U.B.)=( ) A.{1,3}B.{5,6} {4,5,6} {4,5,6,7}