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放缩尺
Author:
萧若茂
放缩尺
GeoGebra
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兩位數加法
四邉形 (四年級) 教師版
画直线等分三角形的面积
異分母分數減法
【案例】2013年安徽高考15题
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角平分線
Drawing quadrilaterals on the grid or the pinboard
高斯函數
-3 ≤ cosA+cosB+cosC ≤ 3/2
活工(一)Q1
Discover Topics
Statistical Characteristics
Derivative
Isosceles Triangles
Step Functions
Combinatorics