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中華民國國旗
Author:
張銘
GeoGebra
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兩組對邊相等和有直角的四邊形
判斷球體
異分母分數減法
拼砌四邊形
四邉形 (四年級) 教師版
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圖一
Quiz on Solving Quadratic Inequalities 解二次不等式：測驗
省政信箱
congruent triangle_provided by Mr Yeung Kar Chun
直角坐標與極坐標的轉換
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Parabola
Percentages
Ellipse
Functions
Frequency Distribution