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GeoGebra
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抛物线
Author:
李非易
GeoGebra
New Resources
第八周作业
找出對稱軸
近似值：有效數字
長方體平面投影 (Codex版)
球體建築師
Discover Resources
錐體建築師 5
Sequence指令練習(二維3)
藝術著色
CIRCLE
五星红旗