- 问题详情:Lifeonearthdependsonwater,andthereisnosubstituteforit.Thecurrentassumptionisthatourbasicneedsforwater—whetherfordrinking,agriculture,industryortheraisingoffishwillalwayshavetobemet.Giventhatpremise(前提),therearetwobasicrouteswecango:moreequalac...
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