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Author:
Yin Kelvin Wong
GeoGebra
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兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
四邊形的特性
兩位數除以一位數(一)
找出對稱軸
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線、面平行
函數圖形的變化(Ⅰ)
空間畢氏定理
Copy of 固定面積的圖形的周界變化
高考椭圆题的动态演示2.许兴华数学
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Ellipse
Conditional Probability
Difference and Slope
Random Variables
Statistical Characteristics