在处理CRH2型动车组制动不足故障时,()不可能用到。
A.紧急复位操作
B.切除车辆制动系统
C.配电盘紧急制动NFB、制动控制装置NFB断开
D.牵引变流器1断开
参考答案:D
---Come in, please. This way. ______.
---Thanks. Oh, you have a nice place here.
---I’m glad you like it.
A.Take it easy
B.Make yourself at home
C.Help yourself
D.How do you like it?
从个位起,第______位是万位,第______位是亿位,第九位是7,它表示______.