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Congruent and Similarity
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chisunch1
GeoGebra
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四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
異分母分數減法
画直线等分三角形的面积
兩組對邊相等的四邊形
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大圓內的十二個圓
【練習】資料整理與統計圖表─統計量值
test08
C60足球模型（序列+旋转）
拖拉小正方体
Discover Topics
Line Segment
Linear Equations
Step Functions
Diagrams
Division