【单选题】'Super Girl' may have gone, but it has left young people with the belief they are confident and persevere with their dreams, they can achieve them. [ ]
【单选题】下列关系中正确的个数为( ) ①0∈{0} ②??{0} ③{0,1}?{(0,1)}.
【单选题】下列关系中,正确的个数为 1 ; 2 ; 30∈N * ; 4{-5} Z.
【单选题】下列关系中,正确的个数为( ) (1) ;(2) ;( 3) ;(4) .
【单选题】_______ never to come back again, the girl left the poor village without saying goodbye.
【单选题】下列关系中正确的个数为 ①0∈0; ② {0}; ③{0,1} {0,1}; ④{a,b}={b,a} [ ]
【单选题】下列关系中,正确的个数为 ( ) ① ② ③ ④