互动封闭仿真课堂
1、智能交互 2、电子板书式视频教学 3、在线互动问答 4、封闭课堂启发式教学方式
随堂测试、知识梳理、易错点揭示、总结启迪智能错题本
听课中的错题能自动加入错题本，课后可方便复习及导出错题本升级服务
在线答疑、课后同类题练习、讲义下载、短信提醒5. give out 1) to give sth to a number of different people, especially to give information to people 2) to produce light, heat, a sound, a gas, smell etc You have no right to give my telephone number out. Students were giving out leaflets(传单)to everyone on the street. The teacher gave out the examination papers. The radiator (散热器) is giving out a lot of heat. 与give有关的常用短语还有：:give away 送掉，捐赠give in 让步，屈服give off 发出(气味、光、热、声音等)，此时相当于give out give up放弃give back 归还
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