SHIJIAZHUANG, May 2, 2016 (Xinhua) -- Ma Qingwang creates sugar figures in Shijiazhuang, capital of north China's Hebei Province, May 2, 2016. The 48-year-old craftsman Ma Qingwang is the inheritor of provincial intangible cultural heritage of Sugar Figure in Hebei. (Xinhua/Wang Xiao)
JINAN, May 2, 2016 (Xinhua) -- Visitors watch a rocket launching simulation demonstration at Shandong Science and Technology Museum in Jinan, east China's Shandong Province, May 2, 2016. The museum opened to the public for free during the May Day holidays. Many exhibitions and science and technology activities in such areas like mathematics, physics, chemistry and astronomy attracted lots of visitors. (Xinhua/Xu Suhui)
JINAN, May 2, 2016 (Xinhua) -- Visitors look at a curved mirror at Shandong Science and Technology Museum in Jinan, east China's Shandong Province, May 2, 2016.
SHEFFIELD, May 1, 2016 (Xinhua) -- Ding Junhui of China competes during the first session of final with Mark Selby of England at the World Snooker Championship 2016 at the Crucible Theatre in Sheffield, England, on May 1, 2016. (Xinhua/Han Yan)