Sino-Russian relations have strengthened steadily since the sign

Sino-Russian relations have strengthened steadily since the signing of the bilateral Good-neighborly Friendship and Cooperation Treaty in 2001, Medvedev said, adding that mutual coordination is making progress in every field.
【正确答案】：梅德韦杰夫说，自从2001年两国签署了双边睦邻友好合作条约之后，中俄关系不断加强，在各个领域的相互协作正在取得进展。