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Plastics
Any of various synthetic materials, usually organic compounds, that are produced by polymerization, capable of being molded when soft and then set.
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系統學
Biology; Cell biology
基於資訊從觀測和實驗 ; 生物的 classiÞcation包括重建的進化生命有機體之間的關聯。目前,到 Þve 的王國 (莫內拉原生生物足底,真菌,Animalia) 分為生物廣泛的系統。 ...