TR共223篇
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TF阅读真题第856篇Irrigation and Early Civilizations-托您的福

TF阅读真题第856篇Irrigation and Early Civilizations

TF阅读真题第856篇Irrigation and Early Civilizations
TF阅读真题第857篇Desert Adaptation in Kangaroo Rats-托您的福

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

TF阅读真题第857篇Desert Adaptation in Kangaroo Rats
TF阅读真题第884篇The American Hospital-托您的福

TF阅读真题第884篇The American Hospital

The American Hospital     Few institutions have undergone as radical a transformation as the hospital has in its modern history. It is perhaps distinctive among social i...
TF阅读真题第877篇Pastoralism as a Way of Life-托您的福

TF阅读真题第877篇Pastoralism as a Way of Life

Pastoralism as a Way of Life     Pastoralism is a form of food production that involves the keeping of domesticated herd animals and influences both the social and econo...
WS 032L2-托您的福
TF阅读真题第897篇How Fossils Map the Past-托您的福

TF阅读真题第897篇How Fossils Map the Past

How Fossils Map the Past     Only a tiny fraction of the organisms that have lived during the geologic past have been preserved as fossils.Normally the remains of an ani...
TF阅读真题第881篇Reconstructing the Spread of the Grain Weevil-托您的福

TF阅读真题第881篇Reconstructing the Spread of the Grain Weevil

Reconstructing the Spread of the Grain Weevil Perhaps the most common, most widespread, and arguably most destructive pest of stored grain in history is the grain weevil Sitophilu...
TF阅读真题第891篇The Early Iron Age-托您的福

TF阅读真题第891篇The Early Iron Age

The Early Iron Age     During the Bronze Age (roughly 3300-1200 B.C.E. in the Middle East), civilizations were limited in their use of iron. Most iron occurred not in ...
TF阅读真题第872篇Prosperity in British North America-托您的福

TF阅读真题第872篇Prosperity in British North America

题目:     Prosperity in British North America     The British colonies of North America developed at a remarkable pace throughout the later colonial period. ...
TF阅读真题第902篇Tidal Heating on lo-托您的福

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...