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"Economy and Technology in the Song Dynasty (Part 1)" Multi-Ethnic Regime and Social Changes in the Song Dynasty PPT Courseware 2
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"my country's Market Economic System" Basic Economic System and Economic System PPT Excellent Courseware (Lesson 1)
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2019 Atmospheric Black and Gray Tone Business General Development History Company Introduction Product Introduction Timeline PPT Template
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"Metal Materials" Iron Metal Materials PPT (the application of the amount of substances in the calculation of chemical equations in the second class)
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"Centripetal Force" circular motion PPT high-quality courseware (the understanding of the concept of centripetal force and the application of expressions in the second class)
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"Atomic Structure and the Periodic Table of Elements" PPT of the Periodic Law of the Elements in the Structure of Matter (Atomic Structure and the Properties of Elements in the 2nd Class)
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2021-12-24 14:10:07
"Zheng He's Voyages to the West and the Japanese Infestation in the Middle of the Ming Dynasty" Political change in the Ming and Qing Dynasties and the consolidation of the unified multi-ethnic country PPT courseware 3
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"Meiosis and Fertilization" The relationship between genes and chromosomes PPT (the formation process of egg cells and fertilization in the second lesson)
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