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長(zhǎng)江，亞洲第一長(zhǎng)河，全長(zhǎng)6397千米。它發(fā)源于青藏高原唐古拉山的主峰各拉丹冬雪山?？偯娣e1808500平方公里(不包括淮河流域)，約占全國(guó)土地總面積的1/5，和黃河一起并稱(chēng)為“母親河”。 ....................................................................................據(jù)不完全統(tǒng)計(jì)，從上海至宜賓江段，長(zhǎng)江上共有85座大橋（含長(zhǎng)江隧道），你見(jiàn)過(guò)幾座呢？ ....................................................................................
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