大学体验英语综合教程 3PDF电子书下载

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Unit 1 Caring for Our Earth 8

Unit 2 Nobel Prize Winners 30

Unit 3 Famous Brand Names 52

Unit 4 Cloning and Ethics 74

Unit 5 Lifelong Education 96

Unit 6 Travel Around the World 116

Unit 7 Drug Abuse 136

Unit 8 Conflicts in the World 156

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