http://quizlet.com/736481/xi-%d0%ba%d0%bb-%d1%87%d0%b5%d0%bb%d0%be%d0%b2%d0%b5%d0%ba-%d0%bf%d1%80%d0%b8%d1%80%d0%be%d0%b4%d0%b0-2-flash-cards/