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12. The old man made a very good _________(建议)at the meeting last week.
13. This is a h_______ event of China.
14. Beijing is our final ___________(目的地)
15. I know the place well, so let me be your g________.
16. My hometown is __________(坐落在) by the Changjiang River.
17. I want to own a house at the ___________(海滨).
18. They lived in the ________(市郊)
19. They are on a wedding __________(旅游).
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