: 岩溶塌陷693處 洞庭湖區千民受害

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岩溶塌陷693處　洞庭湖區千民受害 Feb 27th 2012, 13:30 岩溶塌陷693處　洞庭湖區千民受害 詳全文：岩溶塌陷693處　洞庭湖區千民受害

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