A visitor learns housing information from a salesperson at Shijiazhuang Spring Housing Fair in Shijiazhuang, capital of north China's Hebei Province, April 29, 2013. The fair, which kicked off on April 29, will last for four days. (Xinhua/Wang Xiao)

  Visitors learn housing information in front of a housing project at Shijiazhuang Spring Housing Fair in Shijiazhuang, capital of north China's Hebei Province, April 29, 2013. The fair, which kicked off on April 29, will last for four days. (Xinhua/Wang Xiao) 

Salespersons hold posters to attract potential property buyers at Shijiazhuang Spring Housing Fair in Shijiazhuang, capital of north China's Hebei Province, April 29, 2013. The fair, which kicked off on April 29, will last for four days. (Xinhua/Wang Xiao) 

Visitors gather to learn housing information in front of a housing project at Shijiazhuang Spring Housing Fair in Shijiazhuang, capital of north China's Hebei Province, April 29, 2013. The fair, which kicked off on April 29, will last for four days. (Xinhua/Wang Xiao)