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Geometric shapes such as pentagons, circles, trapezoids, rectangles, squares, triangles, circles, etc., simple angle lines, the theme of "grass", geometric simple lines, creative simple atmospheric dark green ppt templates.
Simple and practical thesis defense ppt template, translucent educat...
Fudan University emblem, campus landscape picture layout simple blue...
A large-picture background with visual sense and design sense. Dynam...
Medical and health industry startup project investment plan ppt temp...
Exquisite paper defense general ppt template, topic selection backgr...
Classical line border, ink landscape painting cover, classical fan-s...