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52. A quicker and cheaper way of making motor cars was______.
A. found in 1900
B. that all parts of motor cars were no longer made by hand
C. the one that they should be made in a large car factories
D. the different parts of motor cars were produced in different works
53."Modern car-making factories" means "______".
A. the factories which modern cars are making at
B. the factories where cars are made by modern workers
C. the new factories at which cars are being made
D. the factories where modern cars are made
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