铺子 发表于 2025-3-23 10:30:11

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关心 发表于 2025-3-23 16:31:38

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不给啤 发表于 2025-3-23 20:45:15

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爱花花儿愤怒 发表于 2025-3-24 00:04:12

Chemistry as Occupation and Profession,In 1870 about 800 people were employed as chemists in the United States. By 1970 the number had increased more than a hundredfold, to around 110000. Growth at a rate equivalent to about 5% per year has been the enduring trend.

民间传说 发表于 2025-3-24 04:51:50

Stefano De Dominicis,Erica Molinarioersons with academic degrees. Attention will be paid to the “birth” statistics of degrees conferred and to the “stock” statistics of living degree holders. These data will be broken down to elucidate the many functions of chemical education.

dyspareunia 发表于 2025-3-24 10:24:41

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excursion 发表于 2025-3-24 14:02:37

978-90-277-2662-9Springer Science+Business Media Dordrecht 1985

photopsia 发表于 2025-3-24 18:47:29

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INCUR 发表于 2025-3-24 19:53:18

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NAVEN 发表于 2025-3-24 23:14:31

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查看完整版本: Titlebook: Chemistry in America 1876–1976; Historical Indicator Arnold Thackray,Jeffrey L. Sturchio,Robert Bud Book 1985 Springer Science+Business Med