问答题

随着社会的发展，人类对水的需求不断增加，但可以供人类使用的水资源却急剧减少。水资源危机所带来的生态系统恶化等问题严重威胁着人类的生存。 如何更有效利用水资源，推进水资源的可持续开发和保护，已经成为世界各国共同面对的紧迫问题。

【参考答案】

With the development of the society, man’s demand for water ......

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