永續家園--水汙染 - 社會議題
By Zenobia
at 2010-04-23T00:00
at 2010-04-23T00:00
Table of Contents
學校要做報告幫幫我!!*******************************1.水污染的主要來源？2.水污染對人體及環境會造成哪些影響？3.珍惜水資源、減少水污染可以採取哪些具體行動？4.我們飲用哪一個水庫的水？5.水源是哪一條溪流？6.水庫的水輸送到我們家的過程如何？需經過哪些處理？越詳細越好TKS!!
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社會議題
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By Daph Bay
at 2010-04-24T02:50
at 2010-04-24T02:50
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