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8. A more important question is ______these ideas are well or ill founded.
A. where B. when C. how D. whether
9. I think it is _____you are doing too much.
A. because of B. because C. because that D. because for
10. No one could understand _______.
A. that he was talking about
B. what he was talking about
C. he was talking about
D. which he was talking
11. I knew nothing about his journey ______ he was likely to be away for three months.
A. if B. in that C. except that D. which
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