题目内容

We don't have to check whether there are any vacant berths left when a passenger wants to change his hard seat ticket to a soft berth.

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

We don't have to ask any questions when a passenger comes to claim his or her lost item.

A. 对
B. 错

Station service work and train service work all the same.

A. 对
B. 错

查询从青岛到上海山航当前的运价

查询从南京到成都国航10月1日的运价