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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883篇The Azolla Event
The Azolla Event During the early Eocene period, about 56 million years ago, Earth's atmosphere had high levels of carbon dioxide(CO2) which warmed the planet. But a...
TF阅读真题第882篇The Deforestation of England
The Deforestation of England Today's typical English countryside of rolling green fields and few trees did not evolve naturally. England was originally wooded. Forests of oak and ...
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880篇Dutch Art and the Middle Class
Dutch Art and the Middle Class Throughout history,the wealthy have been the most avid art collectors. Indeed, the money necessary to commission leading artists to ...
TF阅读真题第879篇Lenape Horticulture
Lenape Horticulture Older scholarship on Native Americans assumed that, at the time of their first contact with Europeans, Native Americans in the northeaste...
TF阅读真题第878篇Sensory Ecology
Sensory Ecology Some of the most important sensory information animals have to process comes from other animals. Interactions between predators and prey, pare...
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The Greek City-States: Sparta and Athens Of the hundreds of city-states that evolved during the Archaic Age, (800- 479 B.C.), Sparta and Athens stand out for their vividly contras...
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...
TF阅读真题第876篇Tyrannosaurus rex: Predator or Scavenger?
Tyrannosaurus rex: Predator or Scavenger? Tyrannosaurus rex was among the largest of the theropods, a group of mostly carnivorous (meat-eating) dinosaurs that roamed the Earth dur...