ANALYTIC GEOMETRY PRESENTED BY GUO CHENG GUANG,LIM ZI JIE,GUO CHENGXI(01-06)
11岁郭承光和林子杰与8岁郭承曦用英文开讲解析几何(01-06)
LECTURER:
GUO CHENG GUANG (11 years old, Primary 5 from YUMIN Primary ...
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