TF阅读真题第857篇Desert Adaptation in Kangaroo Rats

TF阅读真题第798篇Transportation and the Roman Empire

TF阅读真题第718篇Glacier Flow and Surging

Temperate Plant Phenology   Phenology is the timing of growth and reproductive activity within a year, and it can vary greatly among plant species, populations, and even indiv...

Sources of Prosperity during China's Song Dynasty     In the tenth century. after a period of political fragmentation, China began to enjoy a peaceful and prosperous per...

The Key Factors Influencing Soil Formation   Soil is the product of the complex interplay of several factors. Weathering, a process that breaks down rocks by physical (mechani...

题目： Farming in Uruk   The ancient city of Uruk in the southern region of Sumer in the ancient Middle East developed an agricultural system that depended on irrigation to ...

TF阅读真题第677篇The Importance of Seed Plants

TF阅读真题第847篇Waking Up Coming Out of Hibernation

There is a much greater similarity between the flowering plant floras of different continents—South America, Africa, Asia, and Australia—than between the mammalian faunas  (anim...