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Testing: addition
Author:
Miss Wong
unit + unit
unit
unit + unit
unit
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三位數除以一位數（二）
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
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try_111
equilateral triangle construction
isosceles triangle construction
同底等高
旋轉菱形
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Parametric Curves
Statistical Characteristics
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Vectors 2D (Two-Dimensional)
Hyperbola