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e-learning task3
Author:
Dai xuan
New Resources
倍數
繪畫平行四邊形
繪畫梯形
小正方体堆积的三视图
正方形纸片剪出正三角形（顶点在边上）
Discover Resources
parabola
circuit
Trigonometric Ratios
五棱柱
中职数学
Discover Topics
Pythagoras or Pythagorean Theorem
Multiplication
Surface
Addition
Geometric Transformations