题目内容

实现生产机械的限位和自动往返,主要依靠()。

A. 接触器
B. 继电器
C. 行程开关

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关于团体中的个人特质应考虑的特性包括()。

A. 人际取向
B. 社会敏感度
C. 优越感
D. 可依赖性
E. 情绪稳定程度

企业改革以保留划拨用地方式处置土地使用权的,期限为几年?

For the V$SESSION_LONGOPS view, you find that some of the database users have long-running queries that consume a lot of CPU time. This causes performance problems for other users in the database, who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time, but you still do not want to terminate them with an error message. Which method would you follow to achieve this?()

A. Set the CPU time per call in the users profile.
B. Set the CPU time per session in the users profile.
C. Set the CPU levels for the user’s group using Resource Manager.
D. Set the TIMED_STATISTICS parameter to TRUE in the parameter file.

冲压设备中为避免冲头冲断手指,冲床车身操作装置中常用的安全保护措施是()。

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