Vector card ventilation papers defense universal ppt template

Description: Dr. hat, one machine, notebook, target, pad, newspaper, light bulb, round, small rocket, handheld mobile phone, cloud service, etc. Vector cartoon icon element, beautiful chart, vector cartoon style design, suitable for fresh graduate papers, graduation Summary of the general paper defense ppt template

Description: Dr. hat, one machine, notebook, target, pad, newspaper, light bulb, round, small rocket, handheld mobile phone, cloud service, etc. Vector cartoon icon element, beautiful chart, vector cartoon style design, suitable for fresh graduate papers, graduation Summary of the general paper defense ppt template