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Lesson18 Medicine What is medicine? And what is health? In different cultures and at di...
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Lesson22 Attitudes to Work Anne Jones has been working at the City Bank for two years．...
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Lesson53 A Seeing — eye DogA seeing-eye dog is a special dog which helps blind people． W...
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Lesson12 The Wright Brothers When they were young boys， Orville and Wilbur Wright rece...
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Lesson15 A Way To Catch a Thief Old Mrs. Robinson was a widow who lived alone in a smal...
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3-1 Father's Birthday-Home-Relatives父亲的生日-家里-亲戚 The day after tomorrow is fathe...
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Chapter 21 THE discussion of Mr. Collins's offer was now nearly at an end, and Elizabeth ...
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Lesson50 On the Origin of Middle Class The rise of the merchant class was intimately li...
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Lesson42 An Affable Man J.S. Minion was a maintenance foreman in the Public Works dep...
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Lesson23 The Exercise Craze Everybody's doing it, old and young, men and women. They're...
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