File photo taken on Dec. 31, 1984 shows a foundation stone laying ceremony of China's first Antarctic research base, the Great Wall station. China published on Monday the first full report on its development in Antarctica over the past three decades, titled "China's Antarctic Activities." According to the report, over the past 30 years, China has opened four research bases -- the Great Wall station, Zhongshan station, Kunlun station and Taishan station -- and established the Polar Research Institute of China in Shanghai in addition to sailing the icebreaker Xuelong. (Xinhua/Dai Jiming)
