单选题 The border incident led to the two countries ______ diplomatic relations.
  • A. breaking off
  • B. breaking up
  • C. cutting off
  • D. cutting up
【正确答案】 A
【答案解析】(break off断绝，结束)。句意为：边界事件导致两国断绝外交关系。B． break up即集会结束；C．cut off切掉，割掉；D．cut up切碎，对……吹毛求疵。