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huang jin yu ren ti jian kang
Author(s): 
Pages: 31
Year: Issue:  8
Journal: Regimen

Keyword:  GetLinkList(KeywordFilter('人体健康:8014黄金首饰:4069放射性物质:2517黄金含量:1701金矿:1497巨大的代价:1473贵重金属:1342金戒指:1168皮肤疾病:1129装饰艺术:1059')'kw''CJFQ');
Abstract: <正> 黄金是世界上公认的贵重金属,人类认识它已有四千多年的历史。自然界中的金矿分布很广,金矿虽多,但黄金含量却极微,即便是较富的金矿,每吨矿石也只能熔炼出两克黄金。由于花费巨大的代价才能换取少量黄金,因而黄金显得极为珍贵。
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