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29. The box is ______ of all. A. heaviest B. the bigest C. the heavier D. the biggest
30. ______, English, math or Chinese?
A. What do you like best B. Which do you like best
C. What do you like better D. Which do you like better
31. I think Liu Dehua is one of the ______ movie stars in China.
A. popular B. popularest C. more popular D. most popular
32. We can't live ______ air. A. without B. with C. to D. out
33. Math ______ one of the ______ subjects in middle schools.
A. are; important B. is; most important C. is; more important D. are; much important
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