摘要
I On the occasion of the 5 0th anniversary of the founding of the People’S Re-public of China and of the establishment of diplomatic ties between the PRC andRussia,both countries have pledged to take this opportunity to further strengthenand develop bilateral relations in the coming 21st century. Looking back at the 50-year relationship between China and Russia,it is notdifficult to see that it underwent not only close cooperation,but also severe con-