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副翼和扰流板2,3,4,5 副翼和扰流2,3,4 扰流板2,3,4 扰流板2,3,4,5
{2} {2,3,4} {3} {0,1,2,3,4}
={1,2,3}, ={2,4},则如图阴影部分表示的集合为( ) A.{0,2}B.{0,1,3} {1,3,4} {2,3,4}
={1,2,3}, ={2,4},则(∁U.A.)∪B为( ) A.{1,2,4}B.{2,3,4} {0,2,3,4} {0,2,4}
={1,2}, ={1,2,3}, ={2,3,4},则(A∩B.)∪C.= ( ) A.{1,2,3} B.{1,2,4} C.{2,3,4} {1,2,3,4}
{2,3,4} {0,2,3,4,5} {0,5} {3,5}
{1,2,4} {2,3,4} {0,2,4} {0,2,3}
={1,2,3}, ={2,4},则 U.A.∪B.为( ) A.{1,2,4}B.{2,3,4}C.{0,2,4} {0,2,3,4}
1,2,3脾脏 1,2,3肝脏 2,3,4脾脏 2,3,4肝脏
(2,3,-4) (-2,3,4) (2,-3,4) (-2,-3,4)
{1,2,4} {2,3,4} {0,2,4,5} {0,2,3,4}
={2,3,4}, ={x||x|<3},则A.∩B.=( ) A.{3} B.{2,3} {2} {2,3,4}
={1,2,3}, ={2,4},则(∁U.A.)∪B为( ) A.{1,2,4} B.{2,3,4} {0,2,4} {0,2,3,4}
{1,2,3,4} {1,2,3} {2,3,4} {1,3,4}
{1,2,3,4} {1,2,3} {2,3,4} {1,3,4}
={1,2}, ={1,2,3},C={2,3,4}则 ( ) (A.) {1,2,3} (B.) {1,2,4} ( ) {2,3,4} ( ) {1,2,3,4}
副翼和扰流板板2,3,4,5 副翼和扰流板2,3,4 仅由2,3,4号副翼 副翼和方向
={1,2,3}, ={2,3,4},则A.∪B.=( ) A. {1,2,3,4} B. {1,2,3} {2,3,4} {1,3,4}