Which of the following most logically completes the argument below? The expansion of large-scale farming in Africa and Asia has destroyed much of the natural vegetation on which elephants have historically depended, forcing them to turn to cultivated land to satisfy their enormous appetites. As a result, farmers have lost millions of dollars worth of crops annually. Yet even if elephant sanctuaries were created on a widespread basis to guarantee elephants sufficient natural vegetation, the raiding would likely persist, since
A. when elephants forage for food, they typically travel in herds. B. Foraging elephants have been known to cause substantial damage even to plants that they do not eat. C. Some of the land where crops have suffered extensive damage from elephants has been allowed to return to its natural state. D. Elephants tend to prefer cultivated crops to wild vegetation as a food source. E. Elephant sanctuaries are usually created in areas that are rich in the natural vegetation on which elephants have historically depended. 答案是D。以前讨论过,不过还是觉得B对。主要受以前新闻报导的影响,泰国大象毁庄稼特别厉害,其实它们不怎么吃庄稼。
答案是D。以前讨论过,不过还是觉得B对。主要受以前新闻报导的影响,泰国大象毁庄稼特别厉害,其实它们不怎么吃庄稼。 请NN给解一下惑
请NN给解一下惑
[此贴子已经被作者于2009-3-24 8:04:59编辑过] |