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哥伦比亚在南美洲面积第四，人口第二，这里美丽与危险并存哥伦比亚拥有约5200万人口，是南美洲仅次于巴西的人口大国。尽管人口众多，这里的森林覆盖率超过50%，大半的土地被茂密的森林覆盖。丰富的矿产 ...
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