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TF阅读真题第898篇Insect Colony Movement
Insect Colony Movement In general, colonies of social insects such as bees or ants move either to change nesting sites when the current site deteriorates in quality,...
TF阅读真题第927篇Degradation and Erosion of Soil
Degradation and Erosion of Soil Land without soil can support only very small primitive plants such as lichens and mosses that can cling onto a rock surface. The rest of the worl...
TF阅读真题第921篇The Greenhouse Effect on Venus
The Greenhouse Effect on Venus The nitrogen and oxygen gases that make up the bulk of Earth's atmosphere neither absorb nor emit thermal radiation, energy that is released f...
TF阅读真题第919篇Building Materials in the Nineteenth Century
Building Materials in the Nineteenth Century For most of the nineteenth century, European architects built in historical revival styles (styles that imitate ...
TF阅读真题第948篇Living-History Museums in the United States
题目： Living-History Museums in the United States The living-history approach to teaching social history combines restored or re-created historical ...
TF阅读真题第928篇Creativity
Creativity A basic question about creativity is, what factors produce it? Several contrasting answers have been proposed. Cognitive psychologists, for example, have tended t...
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...
