Which statement describes the process ID that is used to run OSPF on a router ?（） ["It is locally significant and must be the same throughout an area","It is globally significant and is used to represent the AS number","It is locally significant and is used to identify an instance of the OSPF database","It is globally significant and is used to identify OSPF stub area"]
宋代三次兴学在改革科举方面分别采取了哪些措施？
four switches， which one will be root switch.（no pic）.
下列关于OSPF协议的说法正确的是（） [" OSPF支持基于接口的报文验证"," OSPF支持到同一目的地址的多条等值路由"," OSPF是一个基于链路状态算法的边界网关路由协议"," OSPF发现的路由可以根据不同的类型而有不同的优先级"]
在客户投资和利润分析中，高投资、低利润的是（） ["期望的客户","普通的客户","重复购买的客户","忠诚的客户"]
课程管理的模式
