Children sit in an American-style school bus of a kindergarten in Fushan District, Yantai City, east China's Shandong Province, Dec. 10, 2011. The Kangle Kindergarten in Yantai on Saturday put into use an American-style school bus, which is equipped with GPRS positioning system, stop signals, special seats for school children and other devices to ensure its safety. [Xinhua/Chu Yang]