铁路物流 - 2026 进行中

科目: 铁路物流
级别: VIII
类别: 大学生
测试题目: 英语
问题示例: A wagon cycle consists of 2 days loaded, 1 day in terminal, and 3 days returning empty. How many wagon-days are required for one complete cycle? 3 wagon-days, 5 wagon-days, 6 wagon-days, 8 wagon-days