各种资料未按规定填写，属于（）问题。 ["红线","A1","A2","B"]
（）打滑是因为离合器踏板自由行程过大或分离杠杆调整过低。 ["离合器","驱动桥","差速器","转向器"]
The network administrator wants to enable an EtherChannel between two switches in "on" mode. The administrator connects the cables and enables the interfaces， but while configuring the EtherChannel in the first switch， a spanning-tree loop was detected. Which two of these procedures can avoid this problem？（） ["Configure the EtherChannel as "desirable" first.","Assign all interfaces to the same VLAN.","Disable PortFast on the interfaces in the EtherChannels.","Disable all interfaces first.","Fast Ethernet and Gigabit Ethernet ports cannot be assigned to the same EtherChannel.","Fix cabling problems."]
直达特快旅客列车列车员按（）配备 ["三车两人","一车一人","两车一人","一车两人"]
肌肉的主动张力
问10.1.1.0/24 10.1.2.0/24可以将这两条路由汇总成最短的掩码是什么？
