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Author:陈力

New Resources

長方體平面投影 (Codex版)
近似值：有效數字
Nested spiral octagon
小数的副本
兩組對邊相等的四邊形

Discover Resources

三餘弦定理問題
畢氏定理3
P53_3a
两平面夹角1
圓周公式應用題2的副本

Discover Topics

Multiplication
Triangles
Vectors 3D (Three-Dimensional)
Angles
Difference and Slope

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