中國地理(黃河斷流) - 社會議題
By Queena
at 2015-04-20T00:00
at 2015-04-20T00:00
Table of Contents
黃河斷流的對策的有什麼?課本上說植樹造林,可是我不知道植樹造林能有什麼影響力來降低黃河斷流的影響ㄟ?是能涵養水土嗎@@?請詳解3Q
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社會議題
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By Megan
at 2015-04-23T14:16
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at 2015-04-20T13:39
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at 2015-04-21T05:37
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