![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
CRH1型动车组车体检查时其轨道上边缘到车体上的枕梁下边缘的距离原型范围()mm。
A.917-921
B.916-920
C.915-921
D.915-920
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
A、917-921
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.917-921
B.916-920
C.915-921
D.915-920
A、917-921
A.检查受电弓状态
B.检查检测单元状态及相关控制电路
C.检查21-K11继电器到检测单元之间的接线
D.检查21-K11继电器状态
A.120
B.140
C.160
A.(=43–S22)
B.(=42–S33)
C.(=34–S22)
D.(=34–S33)
A.2.5
B.3
C.3.5
D.4