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When you look at the stars and the galaxy, you feel that you are not just from any particular piece of land, but from the solar system. - kalpana Chawla Solar power is the last energy resource that isn't owned yet , nobody taxes the sun yet. - Bonnie Raitt The total amount of energy we use every year , from coal, oil, natural gas, hydro, nuclear, and everything else , is dwarfed by the amount of solar energy hitting the planet each year. - Ramez Naam
轻松定制 100％完全可编辑的PowerPoint幻灯片 快速轻松地自定义
快速轻松地自定义 创意幻灯片 100％向量（完全可编辑的地图，信息图，图标） 免费图片和艺术品 100％可通过Excel完全编辑 具有文本占位符的主布局 拖放图像占位符
高度可编辑的演示模板。 容易改变颜色 包含所有图像 长宽比为16：9 数据图表可通过Excel编辑
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