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Yi Jiaqi, a fourth grader in the Anchang Primary School in Mianyang, northern Sichuan, attends a class yesterday in Class 6 of Grade 4 in the Paotongshu Primary School in Chengdu. Qiu Jingping (right), teacher in charge of Class 6 of Grade 4 in the Paotongshu Primary School in Chengdu, introduces Yi Jiaqi, a fourth grader in the Anchang Primary School in Mianyang, northern Sichuan, to her students. [Huang Zhiling/chinadaily.com.cn