重大事故、大事故由轨道公司（）负责调查。
A、办公室
B、运输部
C、车辆部
D、安全监察室
参考答案：D
某宾馆的每层疏散走道距地面高度1．2m处的墙面上设有发光疏散指示标志，间距为25m。
问题：该宾馆疏散指示标志是否符合设置要求?说明理由。
— What did you do on May Day?
— I went shopping with my family. There _____ so many people in the street. [ ]
A. was
B. are
C. were
