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勾股定理的毕氏证明（吴兴海)
Author:
吴兴海
GeoGebra
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第八周作业1
双心四边形
正方形雪花图案
平行線的判定
三角函数 的副本
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整數的減法
跑馬燈
甜甜圈v5
等比数列计算练习
CBTL_math_rcpet
Discover Topics
Differential Calculus
Hyperbola
Parallelogram
Matrices
Statistical Characteristics