单选题 His career was not noticeably ______ by the fact that he had never been to college.

【正确答案】 C

【答案解析】[解析] 本题四个动词都有阻止的意思，而且都可以和介词from搭配。prevent“阻止，预防”；restrain“克(抑，遏)制，管制”；hinder“妨碍，阻碍”；refrain“克制，抑制，戒除”。根据题意，应选C。句意是：他的工作并不因他从未上过大学而受到明显的妨碍。