单选题
Since the early 19~0s,Swiss banks had prided themselves ______ their system of banking secrecy and numbered accounts.
【正确答案】
B
【答案解析】在其4个选项中，只有pride，表示“以……自豪，使自豪，使自夸等”。其固定搭配为pride oneself on something，“以……自豪”。做名词时固定搭配为take pride in something。故答案为B。