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33.Please all the numbers . Those numbers 10,000.
A.add to ; add up B.add up ; add up to
C.add ; add to D.add up to ; adds
34.It was about 600 years ago the first clock with a face and an hour hand was made .
A.that B.until C.before D.when
35.What you should remember is that we should always keep in an emergency .
A.still B.calm C.quiet D.silent