Blue green elegant flat wind Beijing University papers defense ppt template

Brief introduction: Beijing University emblem, geometric curved creative cover, hexagonal, rectangular, circular and other shape elements chart, simple flat design, suitable for Peking University graduates reply, thesis defense common ppt template

Brief introduction: Beijing University emblem, geometric curved creative cover, hexagonal, rectangular, circular and other shape elements chart, simple flat design, suitable for Peking University graduates reply, thesis defense common ppt template