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Author:
果冻
Topic:
Inequalities
GeoGebra
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平行線的斜率
直線的斜率
圓的基本性質
讀磅
双心四边形
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Quiz on Solving Quadratic Inequalities 解二次不等式：測驗
三角形外心探討
畢氏定理的證明
半圓上的圓周角
P3 平行與垂直02 測試
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