亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线

From the end of the 1950s, the friendly relations between the Chinese and Soviet Parties and governments gradually deteriorated. In July 1960, the Soviet Government unilaterally decided to withdraw all Soviet experts working in China and to terminate the agreement on economic and technological cooperation between the two countries. Chinese comrades are shown here bidding farewell at the Tianjin Railway Station to Soviet experts leaving for home in August 1960.