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TF阅读真题第929篇Where Did the Carbon Go?
Where Did the Carbon Go? Over the last several hundred thousand years, atmospheric carbon dioxide (CO2) levels decreased when Earth's glacial ice sheets were ...
TF阅读真题第965篇The Emergence of the State
题目： The Emergence of the State Before there was agriculture, people lived in small, loosely organized bands or tribes that hunted for and collected food in the wild. The emerg...
TF阅读真题第844篇Climate Change and Species Distribution
TF阅读真题第844篇Climate Change and Species Distribution
TF阅读真题第807篇The Birth of the Solar System
The Birth of the Solar System The Birth of the Solar System 题目： Scientists believe that the sun and the planets in our solar system formed from a vast clo...
雅思听力真题第245套
听力音频： 雅思听力真题第245套(音频) https://mp.weixin.qq.com/s?__biz=MzI2NzA4MDMwNA==&mid=2247522976&idx=4&sn=5d242af5ed4928cd98f1264889129af1&scene=21#wechat_red...
TF阅读真题第940篇Transportation and Urban Development in Los Angeles
Transportation and Urban Development in Los Angeles 题目： In the early twentieth century, the key urban problem in the United States was congestion. Streetcars (pu...
托福口语真题XYS_MT021
综合部分听力音频： MT 021综合口语听力音频 https://mp.weixin.qq.com/s?__biz=MzI3ODM5NzI3Mg==&mid=2247517028&idx=5&sn=851b409bae695f47d244f0adb40de9a9&scene=21#wecha...
