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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
Locus Related to Descartes' Folium
Untitled
Volume by Disk/Washer around y
Pitfalls of Disk/Washer Method
Reflection across a line
Discover Resources
Isometries
Sum of a vector with another vector multiplied by a scalar
Mae's Cylinder
graf cearnach comhéifeacht
carport problem
Discover Topics
Polygons
Kite
Circle
Linear Regression
Conditional Probability