题目内容

高架绝缘斗臂车在110kV设备上工作，绝缘臂的有效长度应该多长？

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并提出相应的改善措施。

You work as a network administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers on the ABC.com network have Windows Server 2012 R2 installed and all client computers have Windows 8 installed. The ABC.com network contains a domain controller named ABC_DC01. You want to run the ping ABC_dc01.ABC.com command from a client computer named ABC_WS27.How would you accomplish this？（）

A. You should configure the firewall on ABC_DC01 to allow inbound ICMP traffic.
B. You should run the dcdiag /v command on ABC_DC01.
C. You should run the netdiag /v command on ABC_WS27.
D. You should configure the firewall on ABC_Ws27 to allow inbound ICMP traffic.

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70t级铁路货车的最高商业运营速度为（）。

A. 80km／h
B. 100km/h
C. 120km/h
D. 140km/h

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防腐绝缘层应具有良好的（）和化学稳定性。

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