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) of oneself 自动地
The door closed of itself suddenly.
(6) be oneself 身体或情绪好
I am not myself today.
(7) help oneself to n. / pron. 随便……
Please help yourself to the fish．
(8) in oneself 本身
This is not a bad idea in itself.
(9) come to oneself 苏醒
The injured man came to him- self in five minutes.
(10) between ourselves 私下说的话
All this is between ourselves.
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