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waaachen
Author:
陳兪宏
孟哲老師解法
GeoGebra
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算柱 (兩位數)
四邉形 (四年級) 教師版
第八周作业
兩位數除以一位數(一)
【案例】圆柱体内放置一个大球六个小球
Discover Resources
微積分基本定理
線性規劃 - 數學技巧1
LinearProgramming
纏繞畫1
连续开方(制作:谢建华,修订:孟宝兴)
Discover Topics
Parallelogram
Rotation
Ellipse
Difference and Slope
Planes