单选题 But it has been a contest for years, and is only fought out after a long______ of victory.

【正确答案】 C
【答案解析】[考点] 名词辨析 pose“样子,姿势”;poise“平衡,均衡”;balance“平衡,权衡,对比”;barrier“障碍,路障”。
[译文] 但这是穷年累月的斗争,只有经过长时间的较量才能决出胜负。