生态/环境学生态系统

　　1 TPO 03：The Long-Term Stability of Ecosystems

　　2 TPO 19：Succession, Climax, and Ecosystems

　　3 TPO 26：Survival of Plants and Animals in Desert Conditions

　　环境特点

　　1 Sample：Electricity from Wind

　　2 TPO 04：Petroleum Resources

　　3 TPO 10：Variations in The Climate

　　4 TPO 18：Lightning

　　5 TPO 23：Urban Climates

　　艺术绘画/雕塑/陶瓷

　　1 Sample：

　　Lascaux Cave Paintings

　　2 TPO 04：Cave Art in Europe

　　3 TPO 10：Chinese Pottery

　　4 TPO 11：Ancient Egyptian Sculpture

　　5 TPO 23：Rock Art of the Australian Aborigines

　　建筑/戏剧/电影/摄影

　　1 OG：Applied Arts and Fine Arts

　　2 TPO 01：The Origins of Theater

　　3 TPO 02：Early Cinema

　　4 TPO 03：Architecture

　　5 TPO 12：Transition to Sound in Film

　　10 TPO 22：The Birth of Photography

　　历史/考古学工业化介绍

　　1 OG：Artisans and Industrialization

　　2 TPO 06：Powering The Industrial Revolution

　　3 TPO 18：Industrialization in The Netherlands and Scandinavia

　　4 TPO 26：Energy and the Industrial Revolution

　　贸易/经济介绍

　　1 TPO 10：Seventeenth-Century European Economic Growth

　　2 TPO14：Pastoralism in Ancient Inner Eurasia

　　3 TPO 16：Trade and The Ancient Middle East

　　4 TPO 17：Europe’s Early Sea Trade with Asia

　　5 TPO 25：The Decline of Venetian Shipping

　　农业发展介绍

　　1 TPO 07：Agriculture, Iron, and The Bantu Peoples

　　2 TPO21：The Origins of Agriculture

　　3 TPO 23：Seventeenth-Century Dutch Agriculture

　　国家/城市特点

　　1 OG：Nineteenth-Century Politics in The United States

　　2 TPO 07：Ancient Rome and Greece

　　3 TPO 08：The Rise of Teotihuacan

　　4 TPO 14：Maya Water Problems

　　5 TPO 19：The Roman Army’s Impact on Britain

　　6 TPO 26：Sumer and The First Cities of The Ancient Near East

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