【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】____ in a dark room, the little girl was so frightened as to cry loudly.
【简答题】有人在测量二极管的电阻时,为了使测试笔和管脚接触良好,用两只手捏紧去测量,结果发现反向阻值偏小,认为不合格,但用在设备上却正常,这是什么原因?
【单选题】下列关系中正确的个数为 ① ∈R;② Q;③|-3| N*;④| |∈Q; [ ]
【单选题】下列关系中,正确的个数为 ( ) 1 2 3 4
【单选题】In 'The little girl is left alone in the house, weeping bitterly' the italicized part is the ______ of the sentence.
【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