IDG滑油冷系统中,冷却器旁通活门在什么情况下被打开?()
A. 当IDG冷却系统中的油滤被堵塞的情况下,冷却器旁通活门将被打开
B. 当IDG冷却系统中过热的情况被探测到,冷却器旁通活门将被打开
C. 在冷滑油运转的情况下,由于滑油的粘度较高,因此冷缺器旁同活门打开
D. 当IDG滑油系统压力过高的情况下,冷却器旁通活门将被打开
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可有效预防婴幼儿气管插管后喉头或声门下水肿的措施为()
A. 用聚氯乙烯导管代替橡胶导管
B. 插管前应用甲泼尼龙
C. 插管前用麻黄碱10mg雾化吸入
D. 术中机械通气
E. 不用带套囊的气管导管
光电缆故障时,通信站、工区向段调度汇报时应做到四清()
A. 光电缆种类清
B. 故障距离清
C. 故障时间清
D. 故障现象清
f a Cisco switch is configured with VTPv1 in transparent mode, what is done with received VTP advertisements?()
A. They are discarded
B. The contents are altered to reflect the switch’s own VTP database and then they are forward out all trunking ports
C. The changes within the advertisements are made to the switch’s VTP database.
D. The contents are ignored and they are forwarded out all trunking ports.