解答影片
https://www.youtube.com/watch?v=5sKwPk7k_k0
https://www.youtube.com/watch?v=ch0qSK00POY
https://www.youtube.com/watch?v=HBn7tl-3FBU
https://www.youtube.com/watch?v=T3EaBhmunnM
https://www.youtube.com/watch?v=1MEbPthBcPg
11-23 國立臺灣師範大學數學教育中心辦理「201...