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分數比較
Author:
Yin Kelvin Wong
分數比較
GeoGebra
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拼砌四邊形
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
球體建築師
第八周作业
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xsggh
優良作品3
學習單：三角形內(外)角合
barara magic stick
P.8.20_1
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Inequalities
Division
Expected Value
Constructions
Combinatorics