div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: PowerPoint プレゼンテーションKawaguchi Science Museum 12 Title PowerPoint プレゼンテーション Author 渡邉 博士 Created Date 5222019 2:17:49 PM src=https:reader034vdocumentocomreader034viewer20220505005f92c2de50f97b7c073d31dfhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divp2019pdiv