Middle school students attend lessons ahead of the upcoming college entrance exam at a temporary classroom in the earthquake-hit Anxian county, Sichuan province June 26, 2008. The annual national college entrance examination, or "gaokao", for the 62 quake-ravaged counties and districts in Sichuan and Gansu provinces was postponed until July 3 to 5, the Ministry of Education said. REUTERS/Stringer (CHINA). CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.