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课程与PC端同步更新，充分利用零碎时间。做题
海量精选试题，想练就练，瞬间提分。答疑
网校名师24小时在线答疑解惑直播
名师大咖面对面，有问有大收获多。Dear Professor Herb Jason,
I am Li Ming, dean of the History Department, Peking University. I am writing to invite you to participate in an international convention that is to be held in Beijing from 22th to 25th, July, 2007.
Since your visit in Beijing last year, all the teachers that attended your lecture have been deeply impressed with your thorough knowledge and profound understanding of the subject. We would be pleased if you could come, as our guest of honor, to the International Conference on Chinese History, If possible, would you please deliver a speech on whatever subject that interests you. Enclosed in this letter is a time schedule for the event. You would, of course, receive our standard honorarium to cover traveling and other expenses. When you arrive in Beijing, I will certainly meet you at the airport.
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