Twins wait to take part in a game. More than 100 pairs of twins (and some triplets) gathered at a "Twins Competition"-themed party on May 14, 2011, in Qingdao, Shandong province. [Photo/Xinhua]
A pupil reacts to a robot at a science road show in Beijing, on May 14. The national science week began on May 14, with more than 100,000 science events, road shows and lectures to be held throughout China from May 14 to 20. [Photo/Xinhua]