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(3) take in
① 接受 (房客，客人等);收留 The farmers took in the lost travelers for the night.
② 理解;领会;明白 The boys could not take in his meaning.
③包括;涉及 The study of physics takes in many different subjects.
④使上当;欺骗We were completely taken in by her story.
(4) take on
① 接受;从事(某工作) After his father died, Bill took on the management of the factory.
② 雇用Is the supermarket taking on any more assis- tant?
③ 具有(新面貌、意思等) The city has taken on a new look.
(5) take up
① 从事某项活动;发展某种爱好 So many young men want to take up writing.
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