第5题: [单项选择]They seized Belgrade, though only after having encountered a stubborn ______. A. persistence B. resistance C. insistence D. assistance 参考答案:B 答案解析:[解析] 本题空格处是说遭遇顽固的抵抗。resistance的意思是“抵抗”,符合题意。如:break down the enemy's resistance(粉碎敌人的抵抗)。其他三项“persis