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Unit 1.ppt
Unit 2.ppt
Unit 3.ppt
E-book.flv
活字印刷术的发明.mpg
Unit 1 Listening and vocabulary-2.mp3
Unit 1 Listening and vocabulary-3.mp3
Unit 1 Listening and vocabulary-4.mp3
Unit 1 Pronunciation and speaking-7.mp3
Unit 2 Reading and vocabulary-2.mp3
Unit 3-6.mp3
巨型计算机.rmvb