当室内户内管穿过楼板时,必须安装在套管中,且套管伸出楼板已完成的表面不得小于多少毫米?
A.50毫米
B.30毫米
C.20毫米
参考答案:A
在价格谈判时销售顾问应该让客户体验到()。
A、价值
B、哀求
C、最底价
D、服务
The metric assigned to each network depends on the type of protocol.Some simple protocol, like RIP, treats each network as equals. The(1) of passing through each network is the same; it is one(2)count. So if a packet passes through 10 network to reach the destination, the total cost is 10 hop counts. Other protocols, such as OSPF, allow the administrator to assign a cost for passing through a network based on the type of service required. A (3) through a network can have different costs (metrics). For example, if maximum(4) is the desired type of service, a satellite link has a lower metric than a fiber-optic line. On the other hand, if minimum(5)is the desired type of service, a fiber-optic line has a lower metric than a satellite line. OSPF allow each router to have several routing table based on the required type of Service.
(2)是()
A.process
B.hop
C.route
D.flow