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 room window is still bright is our English teacher’s office .
A.which B.its C.whose D.that
30.The weather turned out to be very good , was more than we could expect .
A.what B.which C.that D.it
31.The little boy got punished what he had done .
A.because B.because of C.since D.as
32.—Which of these two electronic dictionaries do you like better ?
— . They are both expensive and of little use .
A.Neither B.All C.Both D.None
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