Peaceful coexistence and( )and multipolarity should-be some of the building blocks of the new concept of international relations which would lead to a peaceful,and prosperous world.

　　A.multilateralism

　　B.unilateralism

　　C.absolutism

　　D.hegemonism

　　【答案】A。“和平共处和多边主义以及多极化应当成为国际关系新概念的中心，这将 会带来一个更加和平繁荣的世界。”multilateralism：多边主义;unilateralism：单边主义;absolution：免罪、赦免;hegemonism：霸权主义。结合句意可知填入“多边主义”更合适， 与后部分的“多极化”形成并列关系，与“和平和繁荣”情感色彩一致。故正确答案是选项A。