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 place they met was beautiful.
I can’t express grateful to you.
Nelson Mandela ,fought for the black people,was born in South Africa.
To be sure to come and meet my family tonight
Many questions were come up in my first class, which was a surprise to me.
If it rains tomorrow, we’ll start out.
I can’t waste my time to do those things.
Do you think what is happening there?
His back was disappeared in the crowd.
She still felt a lit loneliness.
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