B4--4-2--橢圓---橢圓的標準型方程式與各要素之間的關係(理論)

2019 3:50

要下載各冊個單元練習卷(目前只有1-4冊)，請至各冊第一單元第一個影片下方說明處連結下載。歡迎參觀我們的新教學網站： ...

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