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This is a gray 44 3D villain and whiteboard series PPT material download, a total of 44, JPG format. Keywords: hand holding whiteboard, blackboard, lecture, lecture, placard, training, teacher, lecturer, education.
Introduction: pen tool, books, glasses, computer, magnifying glass a...
Description: Gray-black business high-rise big picture cover, transp...
Brief introduction: National Grid logo, blue sky and white cloud sol...
Introduction: Look up the business background of the big picture of ...
Brief introduction: company profile, project introduction, product o...
Introduction: Data chart business big picture cover background, hexa...