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簡介：重慶市巴南區有一處山間洞穴，被當地村民稱為熱洞，這個洞口長年煙霧繚繞，神秘莫測。記者前去實地探訪，在重慶地勘局的專業人員和村民帶領下，進入熱洞探秘，發現洞內的氣溫達到了45度高溫。記者深入探尋才發現原來是洞內有一處天然熱泉，常年不斷，造成了洞內高溫的結果。收起
巴南探秘（上）神秘洞穴 [走近科學] 20120209
巴南探秘（下）會響的石頭 [走近科學] 20120210
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