下图是�国西部某地区略图图中左上方所示为当地铁路沿线的草方格沙障读图回答问题 在铁路沿线设置草方格沙障其主要生态功能是 A.截留水分 Template




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tomski下图是�国西部某地区略图图中左上方所示为当地铁路沿线的草方格沙障读图回答问题 在铁路沿线设置草方格沙障其主要生态功能是 a.截留水分 coloring