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Simple Network Management Protocol (SNMP) is composed of a set of network management standards, including an application layer protocol, a database schema and a set of resource objects. The protocol can support a network management system to monitor whether the devices connected to the network have any management concerns.1. For all ships:Step: Tianzheng is drawing topographic maps-setting elevation values for each contour line in the attribute interface-drawing other elements, such as road squares, plant sketches, etc. Set up different blocks in different types to facilitate the operation after entering SU-import SU-select contour line part and use sandbox.NO.1 Yellow Word DamageSNAT: Source address translation solves the problem that intranet users use the same public network address to access the Internet.戚伟易是一个拥有一切的天之骄子，故事开始在他十二岁的那年。他因为游泳比赛得冠军遭人妒忌被打断了脚，住进了乡下的一间小医院，这是他第一次遇见深深。深深被邻居左钧拉着翘课，两人去游玩的途中发生了车祸，没想到这场车祸，竟然让深深失去了声音，深深的母亲又在此时不幸车祸身亡，左钧因而自责不已，发誓要好好照顾深深一辈子。得知母亲过世的噩耗，深深躲到避难室无声的痛哭着，左钧疯了般的把整个医院翻过来找也没找到她，而这个意外却让伟易和深深相遇，一个彼此共有的秘密基地，两人的命运从此改变。两人约定，25岁的圣诞节一起去看看那个秘密的未来。深深曾经试着打给伟易，但是她却什么也不能说，经历一连串阴错阳差，跟着左家生活的深深，随左伯伯的调职搬离小镇。从此，深深与伟易完全断了音讯。而两人之间的故事在他们25岁的时候开始有了新的发展……