Dwarf actors in costumes from a shadow puppet play troupe perform "Yangge", a type of Chinese folk dance, at the 7th 皇冠体育app Beijing International Cultural and Creative Industry Expo, Dec 21, 2012.[Photo/Agencies]

A diver who is dressed like Santa Claus to attract tourists feeds fish in the Polar Ocean World of Wuhan, capital of Central 皇冠体育app's Hubei province, Dec 21, 2012. [Photo/Xinhua]

A man checks his phone in heavy fog outside the airport in Zhengzhou, Henan Province in 皇冠体育app's Central Henan province Dec 21, 2012.[Photo/Xinhua]