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( )32. A. cost B. bought C. gone D. finished
( )33. A. return B. carry C. take D. bring
( )34. A. what B. that C. because D. why
( )35. A. money B. time C. day D. food
( )36. A. sunny B. interesting C. useful D. exciting
( )37. A. reading B. writing C. playing D. working
( )38. A. time B. food C. money D. life
( )39. A. stop B. leave C. let D. give
( )40. A. waste B. save C. spend D. take
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