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illusiion 6 平行线错觉
Author:
arist
GeoGebra
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【案例】2018年全国1卷理科12题
三位數除以一位數（一）
判斷球體
異分母分數減法
兩組對邊相等和有直角的四邊形
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方格紙上畫四邊形
平移
Rounding Quiz (Significant Figures) 有效數字：測驗
Copy of 畫三角形 題2c
PA + PB
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LCM and GCD
General Quadrilateral
Functions
Right Triangles
Quadrilaterals