在8级及以上的大风以及暴雨、雷电、冰雹、大雾、沙尘暴等恶劣天气下,应停止露天高处作业。
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Which two of the following statements describe a routed switch port on a multilayer switch?()
A. Layer 2 switching and Layer 3 routing are mutually supported.
B. The port will not be associated with any VLA
C. The routed switch port supports VLAN subinterfaces.
D. The routed switch port is used when a switch has only one port per VLAN or subnet.
E. The routed switch port ensures that STP remains in the forwarding state.
供电所管辖客户数较多,平原地形客户数量不低于2万户、丘陵地形不低于1.5万户、山区(海岛)地形不低于1万户或高原地形不低于1万户的,宜保留。
A. 正确
B. 错误
石膏架库不下料该怎么处理()
A. 继续运转
B. 二锤敲打
C. 反转皮带
D. 减少投料