CALCULUS PRESENTED BY GUO CHENG GUANG(04-80)主讲:郭承光(11岁,育民小学五年级)助讲:郭承曦(8岁,育民小学二年级)LECTURER:GUO CHENG GUANG (11 years old, Primary 5 from YUMIN Primary School)GUO CHENGXI( 8 years old, Primary 2 from YUMIN Primary School)内容: further differentiation 导数Wechat: Go-SingaporeE-mail: talentguo001@gmail.com
11岁郭承光用英文开讲:大学微积分(04-80)—在线播放—优酷网,视频高清在线观看
