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  3. Nature’s ways of maintaining the balance are simple and easily understood. The balance of nature can prevent soil deterioration

Nature’s ways of maintaining the balance are simple and easily understood. The balance of nature can prevent soil deterioration

admin2013-06-17  80
问题 Nature’s ways of maintaining the balance are simple and easily understood.
The balance of nature can prevent soil deterioration.
选项 A、Y
B、N
C、NG
答案A
解析 第四段第一句“The balance of nature is...prevent soil deterioration”可知生态平衡可起到prevent soil deterioration的作用。
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大学英语四级

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