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1. able → unable, smoker → nonsmoker, like →
dislike, possible → impossible
2. lead → mislead
3. net → internet, national → international
4. tell → retell
5. teach → teacher, act → actor, art→ artist, compete → competition, agree → agreement
6. care →careful, use → useless, comfort → comfortable
7. actual →actually, proper → properly
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