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bkb-切割线定理
Author:
梁航宇
GeoGebra
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【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
拼砌四邊形
錐體建築師
異分母分數減法
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多項式函數
proof3(1-1)吳奕杰
函數、方程式、參數式
等積的正六邊形與正方形
双曲线定义
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Kite
Statistical Characteristics
Parallelogram
Arithmetic
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