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demo
helloworld
demo
Author:
neilking
helloworld
Demo
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Demo
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圓的切線方程
画直线等分三角形的面积
漂亮的摇摆曲线
兩位數加法
兩位數除以一位數（一）
Discover Resources
gtx-a01-flag-sesel-01 塞席爾國旗
gjh-f03-00 司乃耳定律
taeyeon
Angle at centre twice angle at circumference
特殊時鐘模擬
Discover Topics
Logarithmic Functions
Kite
Vectors 2D (Two-Dimensional)
Circumcircle or Circumscribed Circle
Statistical Characteristics
