On May 7, the student of the elementary school austral light of city of Dan of Heibei province Han is showing smiling face clip. That day, each district school holds rich and colorful " smile " thematic activity, receive the world smiled on May 8 the arrival of day. Xinhua News Agency is sent (Hao Qunying is photographed)On May 7, the student of the elementary school austral light of city of Dan of Heibei province Han is revealed self-restrained " fruit vegetables smiling face " . That day, each district school holds rich and colorful " smile " thematic activity, receive the world smiled on May 8 the arrival of day. Xinhua News Agency is sent (Hao Qunying is photographed)On May 7, in Jiangsu province Zhenjiang city liberates grade nursery school, a child shows self-restrained smiling face clip. That day, each district school holds rich and colorful " smile " thematic activity, receive the world smiled on May 8 the arrival of day. Xinhua News Agency is sent (Shi Yucheng is photographed)On May 7, hubei province Zi puts in a county 's charge the child of a nursery school is showing smiling face clip. That day, each district school holds rich and colorful " smile " thematic activity, receive the world smiled on May 8 the arrival of day. Xinhua News Agency is sent (Wang Hui is rich photograph)On May 7, river of city of island of emperor of Heibei province the Qin Dynasty east the student of elementary school is showing smiling face clip. That day, each district school holds rich and colorful " smile " thematic activity, receive the world smiled on May 8 the arrival of day. Xinhua News Agency is sent (Cao Jianxiong is photographed)