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考研英语翻译练习-17

2008-9-25 08:56  

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  The _____ observation, of the absence of grazers (食草动物)in areas of high phytoPlankton(浮游植物群落)_______, led Hardy to propose his principle of animal _______ , which _______ that phytoplankton produced a repellent(驱虫剂) that excluded grazers from regions of high phytoplankton concentration.

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  相反的观察,即在浮游植物群落高度集中的地方缺乏食草动物的现象,使哈笛提出了他的"动物排除"理论,该理论假设浮游植物群落能产生一种驱虫剂赶走在浮游植物高度集中区域内的食草动物。

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