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Introduction: grid background, dotted line molecular chain, simple line frame, vector cartoon style pencil, triangle ruler creative design cover, warm color matching, cute cartoon style design, suitable for education and teaching courseware, teacher's new semester teaching work plan, teaching summary Primary education theme ppt template for application in other scenarios. label
Introduction: grid background, dotted line molecular chain, simple line frame, vector cartoon style pencil, triangle ruler creative design cover, warm color matching, cute cartoon style design, suitable for education and teaching courseware, teacher's new semester teaching work plan, teaching summary Primary education theme ppt template for application in other scenarios. label
