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作业本82页15题
Author:
宋晓燕
GeoGebra
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直線的斜率:水平變化 & 鉛垂變化
盈利與虧蝕
活动三:应用性质
百分數及其應用
斐波那契螺旋弧线(表格法-可动态调节)
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柏拉圖宇宙模型
幾何_圓2
How to draw a triangle with ruler and compasses?
愛心
圖一
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Statistics
Trigonometric Functions
Quadratic Functions
Geometric Distribution
Ellipse