One primary goal of UNESCO is to ________ modern knowledge society in which all people can participate in information and knowledge．
A.make up
B.polish up
C.build up
D.give up
网友回答
C解析本题考查动词词组。题意为：建立现代化的知识社会，让所有人都能参与信息与知识，是联合国教科文组织的主要目标之一。build up“建立”；take up“从事”；polish up“改善，润色”；make up“弥补，虚构，整理，和解，化妆”。