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簡介：地球已有46億年的歷史，它在不同時期會有不同的變化，地球溫度每上升一點，就會給我們的地球環境帶來劇烈的影響，全球變暖和人類排放大量的溫室氣體之間有密切的關係。收起
真相追蹤 [走近科學] 20120314
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