旅游资源观赏价值 enjoy value of tourism resources
Although, we established environmental resource values in the 1960s ,it radically changed the traditional concept that environmental resource are got without any payment.
尽管20世纪60年代确立的环境资源价值观,从根本上改变了以往的传统观念—环境资源可以无偿地索取。
参考来源 - 环境资源价值的价格策略·2,447,543篇论文数据,部分数据来源于NoteExpress
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