Analysis on Land Use Dynamic Change and Its Causes in Luanhe Valley of Inner Mongolia
内蒙古滦河流域土地利用动态变化及原因分析
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Study on Biodiversity of Higher Spore Plant of Area of Upper Reaches of Luanhe River
滦河上游地区高等孢子植物物种多样性研究
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China-Japan Cooperation Project on Second Line Tuberculosis Drug Resistance Survey in Henan Province
中日合作对河南省结核菌二线药物耐药监测研究
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历史上最严重的冰河期,被称为雪球地球(Snowball Earth)期,当时地球完全被冰层覆盖。6.35亿年前,永久冻结带释放出大量甲烷,这一时期突然结束。
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喀纳斯河,就好像是一条蜿蜒的翠绿色玉带,或曲折地缠绕在山岭间,或随意地舒展在草地上。
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In fact, she used to save spiral lions that had wandered far from the water.
实际上, 她经常救那些爬得离河太远的螺蛳.
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In fact, she used to save spiral lions that had wandered too far from the water.
实际上,她经常救那些爬得离河太远的螺蛳。
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