经检验、清洗和更换部件的液化石油压力容器瓶阀组装后逐只进行关闭状态、启闭过程和全开启状态的气密试验,试验压力为2.5MPa,保压时间不少于3分钟,不允许有泄漏。
参考答案:错
NAC's (Network Access Control) role is to restrict network access to Only compliant endpoints and (66) users. However, NAC is not a complete LAN (67) solution; additional proactive and (68) security measures must be implemented. Nevis is the first and only comprehensive LAN security solution that combines deep security processing of every packet at 10Gbps, ensuring a high level of security plus application availability and performance. Nevis integrates NAC as the first line of LAN security (69). In addition to NAC, enterprises need to implement role-based network access control as well as critical proactive security measures — real-time, multilevel (70) inspection and microsecond threat containment.
(67)处填()。
A.crisis
B.security
C.favorable
D.excellent
护轨平直部分轮缘槽标准宽度为42mm,如侧向轨距为1441mm时,则侧向轮缘槽标准宽度为()mm。