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ptccs2new

Author:Cheung Wing Chuen

New Resources

兩組對邊相等的四邊形
兩位數加法
直角坐標平面上的旋轉變換
拼砌四邊形
近似值：有效數字

Discover Resources

省政信箱
題一
invariance interval
多动点运动
正三角形在长方形边上移动加滚动

Discover Topics

Arithmetic Mean
Angles
Logarithmic Functions
LCM and GCD
Numbers

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