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《人类科学和科学研究世界宣言》请愿书要求科学研究惠及每个地球人
source link: https://www.etufo.org/ufoet-24865.html
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《人类科学和科学研究世界宣言》请愿书要求科学研究惠及每个地球人
https://www.etufo.org/ufoet-24865.html
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