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( )18. May the fourth is the day __________ we Chinese people will never forget.
A. which B. when C. on which D. about which
( )19. Is it in that factory ______ “Red Flag” cars are produced?
A. in which B. where C. which D. that
( )20. He must be from Africa, ____ can be seen from his skin.
A. that B. as C. who D. whatwww.xkb1.com
( )21. He has two sons, __________ work as chemists.
A. two of whom B. both of whom C. both of which D. all of whom
( )22. I, __________ your good friend, will try my best to help you out.
A. who is B. who am C. that is D. what is
( )23. I don’t like __________ you speak to her.
A. the way B. the way in that C. the way which D. the way of which
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