纺丝油剂泵电机在工频电压下的转速是()。
A. 970r/min
B. 1200r/min
C. 1500r/min
D. 1800r/mi
位于井内机组最下端的()是机组的动力设备,将地面输入的电能转化为机械能,井而带动多级离心泵高速旋转做功。
A. 潜油电动机
B. 多级离心泵
C. 保护器
D. 油气分离器
汽轮机冷态启动冲转的开始阶段,蒸汽在金属表面凝结,但形不成水膜,这种形式的凝结称为珠状凝结。
A. 正确
B. 错误
A Cisco switch has this configuration for a port channel connecting to an ESXi using dual NICs and is intended for use with an N1Kv. Interface fastethernet 1/10 Switchport mode trunk Switchport trunk allowed vlan all Channel-group 10 mode on No shut Interface fastethernet 1/11 Switchport mode trunk Switchport trunk allowed vlan all Channel-group 10 mode on No shut Interface port-channel 10 Switchport mode trunk Switchport allowed vlan all No shut Which Port Channel configuration must be used on the Nexus 1000v port-profile?()
A. MAC pinning
B. Cisco Discovery Protocol pinning
C. Mode On
D. Mode Active
E. No port channel configuratio