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時鐘（教師用）
Author:
Mr Tsang
可顯示或隱藏分針，讓學生觀察時針的運動。
GeoGebra
New Resources
apec
Double Rodin Coil Style Torus
Neuberg's Theorem
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bewijs stelling van Pythagoras
Discover Resources
זוויות מתחלפות
Modul 13B_Zalimu_SMAN 2 Baubau
equal area triangles
cone 45-22
Discover Topics
Calculus
Sequences and Series
Logarithmic Functions
Linear Regression
Sphere