题目内容

机场上空有沙暴、大雨时，可以进行翼下压力加油作业。

A. 正确
B. 错误

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矿井井下供电总接地网的接地电阻应小于（）Ω。

A. 2
B. 3
C. 4
D. 10

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调车模式（SH）：牵引运行时，限制速度为（）。

A. 20km/h
B. 60km/h
C. 40km/h
D. 80km/h

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真空灭弧室主要由绝缘外壳、屏蔽罩、（）及动静触头等组成。

A. 瓷柱
B. 波纹管
C. 熔断体
D. 绝缘管

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You are a system administrator at Company. The network includes 100 Windows 2000 Professional computers. A user named Peter wants to share a local printing device directly connected to his computer. Peter needs to share this device among three groups: Engineering, Accounting, and Operations. Peter wants to delegate printer administration to one print administrator from each group. Each print administrator must be able to delete print jobs generated by their own group on the print device. They should not be able to delete print jobs from other groups. You want to configure Peter’s client computer to support these requirements. What should you do? （）

A. Create a single shared printer to be used by all three groups.Allow each print administrator Manage Documents permission.
B. Create a separate shared printer for each group. For each shared printer, allow the respective print administrator Manage Documents permission.
Create a single shared printer to be used by all three groups. Add the print administrator’s user account from each group to the Power Users group on Peter’s client computer.
D. Create a separate shared printer for each group. Add the print administrator’s user account from each group to the Power Users group on Peter’s client computer.&e

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机场上空有沙暴、大雨时，可以进行翼下压力加油作业。

A. 正确 B. 错误

矿井井下供电总接地网的接地电阻应小于（）Ω。

调车模式（SH）：牵引运行时，限制速度为（）。

真空灭弧室主要由绝缘外壳、屏蔽罩、（）及动静触头等组成。

A. 正确
B. 错误