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Author:
Hui Sir
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
柱體建築師
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
画直线等分三角形的面积
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內切圓滾動
三角形面積與內切圓半徑
Text sequence
阿波羅圓
i love you的副本
Discover Topics
Percentages
Root
Normal Distribution
Parabola
Ellipse