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TF阅读真题第916篇New World and Old World Primates
New World and Old World Primates Evidence suggests that primates originated in the Old World and arrived in South America in a single migration. This perhaps occurre...
TF阅读真题第901篇Human Responsibility for Megafaunal Extinctions
Human Responsibility for Megafaunal Extinctions Paleontologists are intrigued by the question of what caused a diverse group of large animals (megafauna) to become e...
TF阅读真题第905篇Adaptations of Marine Mammals
复时间 2022-09-28 2023-12-13 2024-04-13 2025-04-12 Adaptations of Marine Mammals Warm-blooded marine mammals and birds require some special adaptations to permit t...
TF阅读真题第914篇Agriculture and the classic Maya Collapse
Agriculture and the classic Maya Collapse The Classic Maya civilization, which flourished in the lowlands of what is now southern Mexico and Central America ...
TF阅读真题第923篇Science and Nineteenth-Century Visual Arts
Science and Nineteenth-Century Visual Arts In the middle of the nineteenth century, rapid developments in the sciences and popular fascination with recent technologi...
