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-nowdays-
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12/14/2014 postreply
09:50:44
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觉得,坡度低的可以耕种,坡陡如超过45度的,应该退耕还林,不然会加重水土流失和泥石流。。
-谢谢你--
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12/14/2014 postreply
09:58:43
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