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重头戏十月刊,带你探秘331国道! 全长9333公里,经度跨度49°21′,这是解读331国道最

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重头戏十月刊,带你探秘331国道! 全长9333公里,经度跨度49°21′,这是解读331国道最关键的一组数据。论长度,331国道要逊于219国道(全长10065公里),是我国第二长的国道,但它的东西跨度却达到了219国道的约1.8倍! ▎Source

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