以增加国家财政收入为主要目的的关税称为（） ["差价关税","特惠关税","财政关税","保护关税"]
What is the three main step of using the QoS feature with MQC command line interface？
陈酿
相对离心力
The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart， which mechanism is used tocontinue forwarding packets during a switchover？（） ["Reverse Path Forwarding","Hardware-based forwarding","UDP forwarding","Layer 2 Forwarding"]
个别辅导
