(067)12岁郭承曦用英文开讲《定积分的特殊方法及其应用》
3 years ago
3
TECHNIQUES AND APPLICATION DEFINITE INTEGRAL BY GUO CHENGXI (067)
开讲者：郭承曦（12岁）
Wechat（微信）: Go-Singapore
E-mail: [email protected]
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