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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
Silhouettes without gaps and isolated
Free fall
Positive and Negative Space
Nikmati Keunggulan Di Bandar Judi Terpercaya
bewijs stelling van Pythagoras
Discover Resources
Quadratic Translations 2
Sections of Cylinders
MAtematikaa
Two Tangents Theorem
Untitled
Discover Topics
Ratios
Similar Triangles
General Quadrilateral
Rotation
Conditional Probability