After three hours' discussion, the meeting finally without any agreement on the issue.
A. broke out
B. broke down
C. broke away
D. broke through
网友回答
A. broke out
(答案→)B. broke down
C. broke away
D. broke through
解析：B 考察动词短语。句义：三个小时的讨论以后，会谈失败，没有能够达成任何共识。Break down谈判失败；break out爆发；break away挣脱，脱离。Break through突破。