載入中... 相關課程 Back A-7-1-S04_能理解並能以符號表徵交換律、分配律、結合律等的運算。 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. A-7-1-S04_能理解並能以符號表徵交換律、分配律、結合律等的運算。 上傳學習單 下載學習單