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信号集中监测一、二级报警信息及相关数据应在电务段中心服务器自动保存（）。信号设备故障时的集中监测数据应保存5年，并做好故障现象说明。

A. 一年
B. 一年半
C. 两年
D. 三年

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You are a professional level SQL Sever 2008 Database Administrator in an international corporation named Wiikigo. You are experienced in managing databases in an enterprise-level organization, optimizing and sustaining the database life cycle. In the company, your job is to implement solutions on security, troubleshooting, deployment and optimization. A SQL Server 2008 instance should be managed by you. The computer on which the instance run has the following three features: a 64-GB RAM, four quad-core processors, and several independent physical raid volumes. A transactional database will be implemented on the instance. In addition, the database should have a high volume of INSERT, UPDATE, and DELETE activities. Creation of new tables is contained by the activities. You need to maximize disk bandwidth and decrease the contention in the storage allocation structures so as to have the performance of the database optimized. Which action will you perform to finish the task?（）

A. To finish the task, database and log files should be placed on the same volume.
B. To finish the task, the affinity mask option should be configured properly.
C. To finish the task, multiple data files should be create for the database.
D. To finish the task, the affinity I/O mask option should be configured properly.

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信号集中监测一、二级报警信息及相关数据应在电务段中心服务器自动保存（）。信号设备故障时的集中监测数据应保存5年，并做好故障现象说明。

A. 一年 B. 一年半 C. 两年 D. 三年

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委任制公务员如何任免？

刑事追偿的成立要件是什么？

A. 一年
B. 一年半
C. 两年
D. 三年