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測試1
Author:
shihfeng
test
GeoGebra
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小数 的副本
判斷球體
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
直角坐標平面上的旋轉變換
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waaachen
分數乘法
cos(α) + cos(β) + cos(γ) 的對稱性
AirParcel
鹿梅 初中数学几何课件（模型）
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Rectangle
Curve Sketching
Optimization Problems
Bar Chart or Bar Graph
Angles