题目内容

某一钢丝绳的破断拉力为150kn，用作滑轮组的跑绳时，其最大允许的许用拉力为()kn。

A. 15
B. 18.75
C. 30
D. 45.6

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在水准测量中要求前、后视距相等，可以消除水准管轴不平行视准轴所产生的误差。

A. 正确
B. 错误

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等会列车时，不准关闭空气压缩机，并应按规定显示（）

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You work as a database administrator for Certkiller .com. You find that users with DBA role are using more CPU resources than what is allocated in their profiles. Which action would you take to ensure that resources limits are imposed on these users？（）

Assign the DEFAULT profile to the users
B. Set the RESOURCE_LIMIT parameter to TRUE in the parameter file
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E. Revoke the DBA role and grant CONNECT and RESOURCE role to the user

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站内停车起动困难的车站，（）在待发列车后部存放机车、车辆及重型轨道车。

A. 允许
B. 禁止
C. 根据需要
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某一钢丝绳的破断拉力为150kn，用作滑轮组的跑绳时，其最大允许的许用拉力为()kn。

A. 15 B. 18.75 C. 30 D. 45.6

在水准测量中要求前、后视距相等，可以消除水准管轴不平行视准轴所产生的误差。

等会列车时，不准关闭空气压缩机，并应按规定显示（）

You work as a database administrator for Certkiller .com. You find that users with DBA role are using more CPU resources than what is allocated in their profiles. Which action would you take to ensure that resources limits are imposed on these users？ （）

站内停车起动困难的车站，（）在待发列车后部存放机车、车辆及重型轨道车。

A. 15
B. 18.75
C. 30
D. 45.6

You work as a database administrator for Certkiller .com. You find that users with DBA role are using more CPU resources than what is allocated in their profiles. Which action would you take to ensure that resources limits are imposed on these users？（）