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"Motion and Design" Motion and Force PPT Courseware
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"Exponent" Exponential function and logarithmic function PPT
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"Organization and Review" Multiplication in Tables PPT Courseware
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"Li Shizhen and Compendium of Materia Medica" PPT courseware 2
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"Li Shizhen and Compendium of Materia Medica" PPT courseware 3
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"Mechanical Efficiency" Machinery and People PPT Courseware 3
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"Plant Roots and Material Absorption" PPT courseware
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"Einstein and the Little Girl" PPT Courseware 2
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The World of "Fast and Slow" Movement PPT Courseware 2
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Time and efficiency management training PPT template
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People and whiteboard silhouette PPT picture material
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