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 headquarters(总部) of eBay are in San Jose,California.A young man named Pierre Omidyar started eBay.He worked as a computer programmer in California.Mister Omidyar’s idea was to set up a perfect,international marketplace where everyone was equal.His idea began as a Website called Auction Web in 1995.Three years later it became a public company.It was then valued at more than 2 000 million dollars.
EBay does not sell anything itself.Instead,it connects buyers and sellers.It collects money from the sellers for every object sold.EBay has links to Websites in 20 other countries.Almost 50 million people around the world buy and sell things on eBay.
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