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The two teachers were sitting in the teacher’s room . For a moment there was 36 .
Then one of them , Miss Smith said : “I’m afraid I’d have to 37 him .”
“Now , Alice ,” said her friend Mrs. Jackson, “is he such a terrible student ?”
“That’s just the 38 ,” the other woman replied . “Tom is my best student . The problem is that he’s now so lazy that he never gets his 39 done . He hasn’t handed me
40 of his homework for three weeks and I’d be surprised 41 he did now .”
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