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文件 时间 大小 下载
Lesson 1 Finding fossil man 2024-02-29 14:57:06    
Lesson 10 Silicon valley 2024-02-29 14:57:06    
Lesson 11 How to grow old 2024-02-29 14:57:06    
Lesson 12 Banks and their customers 2024-02-29 14:57:06    
Lesson 13 The search for oil 2024-02-29 14:57:06    
Lesson 14 The butterfly effect 2024-02-29 14:57:06    
Lesson 15 Secrecy in industry 2024-02-29 14:57:06    
Lesson 16 The modern city 2024-02-29 14:57:06    
Lesson 17 A man-made disease 2024-02-29 14:57:06    
Lesson 18 Porpoises 2024-02-29 14:57:06    
Lesson 19 The stuff of dreams 2024-02-29 14:57:06    
Lesson 2 Spare that spider 2024-02-29 14:57:06    
Lesson 20 Snake poison 2024-02-29 14:57:06    
Lesson 21 William S.Hart and the early‘Western’film 2024-02-29 14:57:06    
Lesson 22 Knowledge and progress 2024-02-29 14:57:06    
Lesson 23 Bird flight 2024-02-29 14:57:06    
Lesson 24 Beauty 2024-02-29 14:57:06    
Lesson 25 Non-auditory effects of noise 2024-02-29 14:57:06    
Lesson 26 The past life of the earth 2024-02-29 14:57:06    
Lesson 27 The ‘Vasa’ 2024-02-29 14:57:06    
Lesson 28 Patients and doctors 2024-02-29 14:57:06    
Lesson 29 The hovercraft 2024-02-29 14:57:06    
Lesson 3 Matterhorn man 2024-02-29 14:57:06    
Lesson 30 Exploring the sea-floor 2024-02-29 14:57:06    
Lesson 31 The sculptor speaks 2024-02-29 14:57:06    
Lesson 32 Galileo reborn 2024-02-29 14:57:06    
Lesson 33 Education 2024-02-29 14:57:06    
Lesson 34 Adolescence 2024-02-29 14:57:06    
Lesson 35 Space odyssey 2024-02-29 14:57:06    
Lesson 36 The cost of government 2024-02-29 14:57:06    
Lesson 37 The process of ageing 2024-02-29 14:57:06    
Lesson 38 Water and the traveller 2024-02-29 14:57:06    
Lesson 39 What every writer wants 2024-02-29 14:57:06    
Lesson 4 Seeing hands 2024-02-29 14:57:06    
Lesson 40 Waves 2024-02-29 14:57:06    
Lesson 41 Training elephants 2024-02-29 14:57:06    
Lesson 42 Recording an earthquake 2024-02-29 14:57:06    
Lesson 43 Are there strangers in space 2024-02-29 14:57:06    
Lesson 44 Patterns of culture 2024-02-29 14:57:06    
Lesson 45 Of men and galaxies 2024-02-29 14:57:06    
Lesson 46 Hobbies 2024-02-29 14:57:06    
Lesson 47 The great escape 2024-02-29 14:57:06    
Lesson 48 Planning a share portfolio 2024-02-29 14:57:06    
Lesson 5 Youth 2024-02-29 14:57:06    
Lesson 6 The sporting spirit 2024-02-29 14:57:06    
Lesson 7 Bats 2024-02-29 14:57:06    
Lesson 8 Trading standards 2024-02-29 14:57:06    
Lesson 9 Royal espionage 2024-02-29 14:57:06