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光的折射(光线自右下向左上)
Author:
樊双平
GeoGebra
New Resources
拼砌四邊形
画直线等分三角形的面积
畫出對稱圖形
三位數除以一位數(一)
球体的体积推导(优化版)
Discover Resources
七巧板
兩邊和大於第三邊
門格海綿
三角形综合题
一次函数的引入
Discover Topics
Optimization Problems
Logarithmic Functions
Interest Calculation
Boxplot
Trapezoid