问题
单项选择题
使用自动闭塞法行车时，遇发车进路信号机发生故障时发出列车，行车凭证为（）。
A、路票
B、调度命令
C、绿色手信号
D、绿色许可证
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
使用自动闭塞法行车时，遇发车进路信号机发生故障时发出列车，行车凭证为（）。
A、路票
B、调度命令
C、绿色手信号
D、绿色许可证
参考答案：D
| 信息归纳 | ||||||||||||||||
| Mike is a middle school student. He goes to school from Monday to Friday. His home is about 5 miles from school. He usually walks to school. It takes him 50 minutes to walk there. Nancy’s home is a little farther. It’s 20 miles from school. So she often takes the school bus. It takes her 15 minutes to get to school. Bob lives outside the city. It’s a town 30 miles away from his school. He takes the subway. It takes him 8 minutes to get to school by subway. He can have breakfast at home and then leave for the subway station. He studies very hard.
|
