Shiny blue white board marker. Derived from this clipart by lmproulx: http://openclipart.org/detail/104611/marqueur-marker-by-lmproulx 董事會 課堂 教育 白板筆
Calculator, university, wheelchair and whiteboard vector graphic can be downloaded for free calculatoruniversitywheelchair 白板 計算機、 大學、 輪椅和白板
2 Business concept illustrations with world globe and cityscape 世界 全球 世界各地 2 Global Business Concept Illustration Set
Calculator, university, wheelchair and whiteboard vector graphic can be downloaded for free calculatoruniversitywheelchair 白板 Calculator, university, wheelchair and whiteboard
從美國政府 EPA"Sunwise"程式圖像。我轉換了它從 PDF 格式,並刪除所有的"sunwise"商標。源的連結是在這裡-HTTP://www.epa.gov/sunwise/doc/mission_story.pdf 媒體 剪貼畫 公共領域 指向板