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According to Green， no one has yet learned how the diary came to the office building. Tom Brennan received a reward of $1，000， Philadelphia gained another treasure for hit history. And Luxmoore told reporters， “It’s wonderful news. I’m on high.”
1. From the text， we learn that the diary is now owned by _______.
A. Tom Brenna B. an unknown person
C. a Philadelphia magazine C. the library Company of Philadelphia
2. Philadelphia is thought to be the best home for the diary because ________.
A. it was written in Philadelphia
B. it tells stories about Philadelphia
C. people in the city are interested in old things
D. the British and Americans once fought in Philadelphia
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