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"Diamond Graphite C60" Carbon and Carbon Oxide PPT (Lesson 2)
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"Scientific Exploration: Specific Heat Capacity of Matter" Internal Energy and Heat Engine PPT Courseware
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Opera culture theme PPT template with cartoon opera characters background
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"Human Gender Inheritance" Biological Inheritance and Variation PPT Courseware 3
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A group of people silhouettes and podium PowerPoint clip art material download
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"Observing the Growth of Mung Bean Sprouts" Biology and Environment PPT Teaching Courseware
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"Our Life Cycle" Animal Life Cycle PPT Courseware 2
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Classical Chinese style characters, ancient buildings, background, Chinese culture, PPT template
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Colorful digital PPT icon material decorated with cute cartoon animals
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"Human Gender Inheritance" Biological Inheritance and Variation PPT Courseware 5
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"Observing the Growth of Mung Bean Sprouts" Biology and Environment PPT Teaching Courseware
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"Solubility of Different Substances in Water" Dissolution PPT Courseware 2
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"Solubility of different substances in water" Dissolution PPT courseware 3
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"Scientific Inquiry: Density of Matter" Mass and Density PPT Courseware 3
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Cartoon style love life protection animal theme class meeting PPT template
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Container truck and parcel background logistics industry PPT template
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2019-02-16 17:00:00
Opera culture theme PPT template with cartoon opera characters background
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Corporate culture construction PPT template with silhouette background of workplace figures
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Logistics express work summary report PPT template with truck background
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"Preparing a solution with a certain amount and concentration of a certain substance" experimental activity PPT
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"Diamond Graphite C60" Carbon and Carbon Oxide PPT (Lesson 1)
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