高中英语unit3inventorsandinventionsthefourgreatinventionsofancientchina素材新人教版选修8内容摘要：
ge, as well as provide the means for the invention of mercial printing later on. Commercial Printing It was Bi Sheng who first introduced movable type printing in the 1040’s, which was considered as the major force in the history of mercial printing. Bi Sheng used squares of clay where he curved individual Chinese characters. Later on, other types of printing such as wood, copper and lead evolved from this clay type movable printing. However, this significant invention did not make a great impact pared to the way。阅读剩余 0%
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