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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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2021-12-21 12:10:15
"Periodic Law of Elements" Periodic Law of Elements in Material Structure PPT (Application of the Periodic Table of Elements and Periodic Law of Elements in Lesson 2)
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"Periodic Law of Elements" Periodic Law of Elements in Material Structure PPT (Application of the Periodic Table of Elements and Periodic Law of Elements in Lesson 2)
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"my country's Economic Development" Economic Development and Social Progress PPT Quality Courseware (Second Lesson Building a Modern Economic System)
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"Atomic Structure and Periodic Table of Elements" Periodic Law of Elements in Material Structure PPT (Lesson 1 Atomic Structure and Periodic Table of Elements Nuclides)
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"Atomic Structure and Periodic Table of Elements" Periodic Law of Elements in Material Structure PPT (Lesson 1 Atomic Structure and Periodic Table of Elements Nuclides)
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"Sulfur and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 3: Transformation of sulfur-containing substances in different valence states)
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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
"my country's Personal Income Distribution and Social Security" Economic Development and Social Progress PPT Quality Courseware (Second Lesson: my country's Social Security)
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"Mendel's Pea Hybrid Experiment (2)" Discovery of Genetic Factors PPT (Cross Experiment Process and Explanation of Two Pairs of Relative Characters in Lesson 1)
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"Mendel's Pea Hybrid Experiment (1)" Discovery of Genetic Factors PPT (Cross Experiment Process and Explanation of a Pair of Relative Characters in Lesson 1)
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2023-09-20 15:21:38
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