智慧如灯，照亮人生路。女生第几次才会有感觉

　　In the XIth century Kievan Rus' reached its zenith under the reign of Yaroslav. He established enduring ties with many of the ruling European dynasties, strengthened the borders of Rus' and tried to free it from the influence of the Byzantine Empire. Since 988 the church of Rus' had been autonomous, apart from the right of Constantinople to appoint the Metropolitan.