最高运行速度160km/h及以上的客车应采用(),安装客车行车安全监测系统。
A.密接式车钩
B.15号车钩
C.中间体过度车钩
D.15号过度车钩
参考答案:A
当线路信号丢失时,SDH物理接口(SPI)基本功能块会产生什么告警?
By means of multiple pipeline to carry out multiple processing, this technology is called
A.Multiple pipeline
B.Super pipeline
C.Super scalar
D.Very long instruction word