Nature’s ways of maintaining the balance are simple and easily understood. We learn from the passage that to maintain the balan

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问题 Nature’s ways of maintaining the balance are simple and easily understood.
We learn from the passage that to maintain the balance of nature, we will have to ______.

选项

答案conserve our natural resources

解析 细读文章最后一段可知,合理利用自然资源是维护生态平衡的重要方面。
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