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The adventure of the lost book began September 4 when Cory Luxmoore arrived from England to deliver the diary of his ancestor （祖先） to the library Company， which he and his wife considered to be best home for the diary.
Green told American Libraries he had the diary in his possession “about five minutes” when Luxmoore took it back because he had promised to show it to one other person. On returning his hotel after showing the precious book to Green， Luxmoore was shocked to realise that he had left it in the taxi.
Without any delay， Green began calling every taxi company in the city， with no luck. “I’ve felt sick since then，” Luxmoore told reporters.
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