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以「時」和「分」報時
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
錐體建築師
画直线等分三角形的面积
第八周作业
四邉形 (四年級) 教師版
兩位數除以一位數（二）
Discover Resources
手表内部秒针结构示意
多邊形周界A
Angles between line and planes in a cuboid
Volume of the Cuboid
Twghmkc_算柱
Discover Topics
Rectangle
Real Numbers
Cube
Parabola
Linear Functions