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think of…as… in time cool down
go by now that come into existence
be different form lay eggs give birth to
on one’s surface as well as prevent ... from
escape from get close to cheer up
break out to one’s disappointment as a result of
be harmful to sb depend on in one’s presence
watch out in one’s turn
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