TR共223篇
TR
排序
TF阅读真题第908篇The Search for the Origins of Writing
The Search for the Origins of Writing Who invented the first writing? Like many questions of its type in archaeology, this one is not easily answered. Some might arg...
TF阅读真题第907篇Mycorrhizae
Mycorrhizae Fungi are organisms, including mushrooms, yeasts, and molds, that absorb and decompose organic material. Most land plants have specialized roots that con...
TF阅读真题第906篇Early Domestication and Agriculture
复时间 2022-06-07 2025-04-12 Early Domestication and Agriculture To some extent, the causes of agriculture are to be found in the thousands of years of hunting-ga...
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904篇The Nile River Valley
The Nile River Valley Though the verdant green course of the Nile Valley appears to be the very antithesis of the bleached Saharan sands through which it flows, these two contras...
TF阅读真题第903篇Life on Mars
Life on Mars Astronomers strongly suspect that Mars currently has no liquid water, diminishing the chances for life there now. But running water and a denser atmosphere in the pas...
TF阅读真题第902篇Tidal Heating on lo
Tidal Heating on lo To understand tidal heating, we must go back to when the twin spacecraft Voyager 1 and Voyager 2 made close flybys of the moon lo, Jupiter's clos...
TF阅读真题第806篇Maya Population in the Classic Period
TF阅读真题第806篇Maya Population in the Classic Period
写作真题第220套（rs140）
综合写作： 写作真题第220套（rs140）听力音频 https://mp.weixin.qq.com/s?__biz=MzI2NzA4MDMwNA==&mid=2247522646&idx=2&sn=53dbb4dd42ea2b93e84521f827a69eae&scene=21#...
