Geography 版 (精华区)

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                                    本版注意事项：                              
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                │1 .本版讨论范围:地理学、地质学相关知识、评论。  │            
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                │2 .对事不对人，不得对个人进行攻击。             │            
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                │3 .学术版块，请不要灌纯净水。                   │            
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                                                              版主:Gforce wplxb