【判断题】列控的地面设备或者车载设备如果发生了故障,造成了车-地通信中断,需马上停车。
【单选题】What will be the phase angle relationship of a six-pole, three-phase, rotating field generator?
【简答题】二极管的额定电流为100A,不考虑安全裕量的情况下,能够长期流过二极管的电流有效值不超过 (__) A。
【单选题】The notion of a stub is associated with what development phase?
A.
With the requirements analysis phase
B.
With the architectural design phase
C.
With the program design phase
D.
With the integration and deployment phase
【简答题】The Development of SE went through( )、( )、( )three phase。
【单选题】以下哪一选项不是平面拓扑结构的特点( )。