Zheng Lizhong (C), standing vice president of the Chinese mainland's Association for Relations Across the Taiwan Straits (ARATS), takes questions at a press conference after a preparatory discussion between leaders of the ARATS and those of the Taiwan-based Straits Exchange Foundation (SEF) in Fuzhou, capital of southeast China's Fujian Province, Dec. 10, 2009. The fourth round of talks between the two organizations will be held in Taizhong from Dec. 21 to Dec. 25.(Xinhua/Zhang Guojun)