Which three best practices should be implemented at the campus backbone submodule to support the server farm module?（） [" Implement highly redundant switching and links with no single points or paths of failure."," Implement server load balancing."," Implement the Hot Standby Router Protocol (HSRP) for failover protection."," Implement intrusion detection with automatic notification of intrusion attempts in place."]
学习策略
0～6）MPa压力校验器开始加压后，分别在（1、1.6、2.5、4、6）MPa各停留（） ["4min","3min","2min","1mi"]
四圣谛
销售成本率是构成比率。
简述碳酸盐岩的三组分成分分类。
