Russian Prime Minister Dmitry Medvedev delivers a speech at the University of Science and Technology of China in Hefei, capital of east China's Anhui Province, Oct. 23, 2013. (Xinhua/Zhang Duan)

Russian Prime Minister Dmitry Medvedev (2nd R rear) delivers a speech at the University of Science and Technology of China in Hefei, capital of east China's Anhui province, Oct. 23, 2013. (Xinhua/Zhang Duan)

Russian Prime Minister Dmitry Medvedev (2nd R) visits the Institute of Plasma Physics of Chinese Academy of Sciences in Hefei, capital of east China's Anhui province, Oct. 23, 2013. (Xinhua/Zhang Duan)

Russian Prime Minister Dmitry Medvedev (C) takes pictures at the Bao Gong Temple in Hefei, capital of east China's Anhui province, Oct. 23, 2013. Bao Gong is a venerable high ranking official for his honesty and uprightness in Northern Song Dynasty (860-1127). (Xinhua/Zhang Duan)