🔖請參考課本 pp. 362-368
https://www.youtube.com/watch?v=irmu9hJs0pw
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https://www.youtube.com/watch?v=uc7SZvOxHkQ
https://www.youtube.com/watch?v=9UzmzeeXzTc&t=289s
https://www.youtube.com/watch?v=YIB48doOsTI
https://www.youtube.com/watch?v=AUw8AQFUgHM
https://www.youtube.com/watch?v=VE7iq7o0Uzs