单选题:The International Union of Railways is abbreviated as( ). 题目分类:专业英语 题目类型:单选题 号外号外:注册会员即送体验阅读点! 题目内容: The International Union of Railways is abbreviated as( ). 参考答案:【答案仅供学习,请勿对照自行用药等】 答案解析: