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Introduction: Elegant gray low triangle background, three-dimensional earth main picture, headline text creative design cover, transition page, simple flat and fresh style design, green and gray color scheme, earth, map, gesture material picture, suitable for the education of earth environmental protection knowledge, Caring for the homeland, protecting the earth, environmental protection teaching courseware and other scenes of application of the earth environmental protection theme ppt template.
Introduction: Elegant gray low triangle background, three-dimensional earth main picture, headline text creative design cover, transition page, simple flat and fresh style design, green and gray color scheme, earth, map, gesture material picture, suitable for the education of earth environmental protection knowledge, Caring for the homeland, protecting the earth, environmental protection teaching courseware and other scenes of application of the earth environmental protection theme ppt template.
