世博志愿者支持世界無煙日

Volunteers promote World No Tobacco Day in E China

A volunteer shows an anti-smoking sign to a smoker in Liaocheng city of east China's Shandong province, on May 30, 2010. With the coming of the World No-Tobacco Day on May 31, 212 artworks were exhibited during an activity to promote the tobacco bans on Sunday in Liaocheng.