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中國是一個地大物博、幅員遼闊的國度，在960萬平方公里的廣闊天地間有著地球上獨一無二的自然資源與地理奇觀，在綺麗與壯美之外，變幻莫測的自然界還給人類留下了許多難解的千古謎題。你知道萬里長江的真正源頭在哪裡嗎？你知道珠穆朗瑪峰在變矮嗎？你知道千年古井為什麼「見錢眼開」嗎？你知道冬蟲夏草到底是動物還是植物嗎……這些充滿著迷幻色彩的自然之謎是難以簡單地用現代文明手段來詮釋的，它們就如一本神奇的密碼簿，正等著人類去探求、去摸索。
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