题目

听短文,判断对错。 (1) Miss Deng is my favourite teacher. (2) She's clever and helpful. (3) We have science and music on Wednesday. (4) There is a lake between the hills. (5) My friends and I often play ping-pong onthe weekends. 答案:正确 错误 正确 错误 正确城市居民集中区,在晚上用电高峰时,用户的电灯没有正常亮.以下有关原因的分析中正确的是(  )A.用户电灯上获得的电压比正常偏低B.每个用户获得的电能少了C.外供电干线上的电流小了D.发电厂提供的电能不能满足用户需求了
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