Student delivering a classroom presentation. Part of a series of icon symbols for classroom work forms. 學生課堂演示 classroom、Misc clips for Powerpoint、presentation、Projekt、school、students、teaching、Teaching 課堂、適用於Powerpoint的其他剪輯、介紹、項目、學校、學生們、教學、教學 資料來源：openclipart ( https://openclipart.org/ )
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