层门锁闭装置应有透明(),既便于对工作部件进行检查,又可防止积尘影响锁闭装置的正常功能。
A.挡板
B.防尘罩
C.上盖板
D.底板
参考答案:B
I admired my classmate Lisa very much. ____ her prettiness, she was smart and helpful.
A.Except for
B.But for
C.Apart from
D.In spite of
NAC’s (Network Access Control) role is to restrict network access to only compliant endpoints and()users. However, NAC is not a complete LAN()solution; additional proactive and() 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(). In addition to NAC, enterprises need to implement role-based network access control as well as critical proactive security measures — real-time, multilevel()inspection and microsecond threat containment.
additional proactive and()security measures must be implemented.
A.defense
B.intrusion
C. inbreak
D.protection