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Teacher Giving Computer Science Lecture to Diverse Multiethnic Group of Female and Male Students in a College Room. Projecting Slideshow with Programming Code. Explaining Information Technology

视  频 ID：  1103121241
版      权：  Gorodenkoff
视频长度：  0:18
横纵比率：  1.90:1
所属分类：  人物 教育 
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