测试变压器绝缘值应大于(),远程点灯变压器除外。
A. >200MΩ
B. >100MΩ
C. >150MΩ
D. >50M&Omega
Which two components should be part of a security implementation plan?()
A. detailed list of personnel assigned to each task within the plan
B. a Layer 2 spanning tree design topology
C. rollback guidelines
D. placing all unused access ports in VLAN 1 to proactively manage port security
E. enabling SNMP access to Cisco Discovery Protocol data for logging and forensic analysi
炉外精炼中包含哪些精炼手段及这些精炼手段的功能、代表工艺(至少2种)。
旅客和行李、包裹的票、运价里程,以国务院铁路主管部门公布的()为计算依据。
A. 《旅客票价表》
B. 《运价表》
C. 《铁路客运运价里程表》
D. 《票价表》