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C第 章 hapter 1 - Tsinghua · 演示文稿不仅可以表达演讲者的想法和观点, 还可用于传授知识、促进交流以及宣传文化等。 一个完整的演示文稿,通常是由多张幻灯片组成的,每张幻灯片都是演示文稿中既相互
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