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BkD_act15_02c
Author:
Luk Sir
GeoGebra
New Resources
近似值：有效數字
Fibonacci Clock
美國國旗 (Codex 版)
拼砌四邊形
湖南省张毅郴数字教研工作室 logo
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QP3.18
y = sin(ωx)的圖像
製作對稱圖形 LEVEL 1
四下_認識小數(教師版)
勾股定理的直观证明（义务教育数学 新课标-例82）
Discover Topics
Logarithmic Functions
Parallelogram
Numbers
Addition
Frequency Distribution