載入中... 相關課程 Back 2-3觀念02週期表的發展史-門得列夫的故事 登入觀看 ⇐ Use this menu to view and help create subtitles for this video in many different languages. You'll probably want to hide YouTube's captions if using these subtitles. 2-3觀念02週期表的發展史-門得列夫的故事 上傳學習單 下載學習單