He knew that the area’s rich plant life had been severely______ by the huge herds of cows grazing the land. (中国科学院2013年3月试题)

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问题 He knew that the area’s rich plant life had been severely______ by the huge herds of cows grazing the land. (中国科学院2013年3月试题)

选项 A、depleted
B、decomposed
C、corrupted
D、corroded

答案A

解析 deplete意为“耗尽……的资源,使枯竭”;decompose意为“分解,使腐烂、使腐败”;corrupt意为“腐蚀,使堕落”;corrode意为“腐蚀,侵蚀”。句子说的是植被资源因放牧被耗尽了,因此选择A。
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