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日照杆影演示
Author:
Huixin Lin
New Resources
拼砌四邊形
畫出對稱圖形
判斷球體
三位數除以一位數(二)
画直线等分三角形的面积
Discover Resources
zuiduan
畢氏定理平移版
corresponding angles
Dodecahedron
椭圆内切圆链
Discover Topics
Pie Chart or Circle Chart
Variance
Statistical Characteristics
Parallelogram
Unit Circle