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Author:
张书真
GeoGebra
New Resources
异形操场
平行線的判定
正方形雪花图案
三角函数 的副本
圓的基本性質
Discover Resources
盒子的體積
Rounding Quiz (Decimal Places) 小數位：測驗
k-ko-
If指令的應用1-1
三角函数的变换
Discover Topics
Trapezoid
Limits
Sequences and Series
Pyramid
Rectangle