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"Science and Technology and Sino-foreign Communications in the Song and Yuan Dynasties" PPT
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"Science and Technology and Sino-foreign Communications in the Song and Yuan Dynasties" PPT
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"The Third Scientific and Technological Revolution" Science, Technology and Culture PPT Courseware
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"Science and Technology in the Song and Yuan Dynasties" Competition between National Powers and the Development of the Southern Economy PPT Courseware 2
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"Science and Technology in the Song and Yuan Dynasties" National Power Competition and the Development of the Southern Economy PPT Courseware 4
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"Science and Technology in the Song and Yuan Dynasties" Competition between National Powers and the Development of the Southern Economy PPT Courseware 3
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"Science and Technology in the Song and Yuan Dynasties" Competition between National Powers and the Development of the Southern Economy PPT Courseware 3
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