metro link portal

（1）公认端口（WellKnownPorts）：从0到1023，它们紧密绑定（binding）于一些服务。通常这些端口的通讯明确表明了某种服务的协议。例如：80端口实际上总是HTTP通讯。（2）注册端口（RegisteredPorts）：从1024到49151。它们松散地绑定于一些服务。也就是说有许多服务绑定于这些端口，这些端口同样用于许多其它...

___ get off at metro station: Charles de Gaulle - Étoile. From the top there is an excellent view of all of Paris, of the twelve major avenues leading to the Arc and of the exceptionally busy roundabout in which the Arc lies.The Arch is destroyed by the Eiffel Tower in Team Americ...