2 模板可用。
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轻松定制 100％完全可编辑的PowerPoint幻灯片 快速轻松地自定义 容易改变颜色 16：9、4：3的宽高比
We could have saved the Earth but we were too damned cheap. - Kurt Vonnegut? People need to be cautious because anything built by man can be destroyed by Mother Nature. - Russe Honore
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