动车组列车旅客不办理车票有效期延长，但可根据等候日数办理车票_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题判断题

动车组列车旅客不办理车票有效期延长，但可根据等候日数办理车票改签。（部竞赛题）

答案

参考答案：对

选择题

—_____ were you late for the meeting this morning?
—Because I met a friend and had a talk with him.

A. When
B. Why
C. What
D. Where

问答题简答题

流域的基本特征。