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Presentation whiteboard outline vector icon. Thin line black presentation whiteboard icon, flat vector simple element illustration from editable behavior concept isolated stroke on white background -
Slide projector outline vector icon. Thin line black slide projector icon, flat vector simple element illustration from editable cinema concept isolated on white background -
Projector screen outline vector icon. Thin line black projector screen icon, flat vector simple element illustration from editable cinema concept isolated on white background -
outline set of education line icons. linear vector icons such as diploma,ruler,knowledge,web camera,information,pdf,eraser,online class. vector illustration