污泥负荷是描述活性污泥系统中生化过程基本特征的理想参数。
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“唱歌不是人发颠,也是前朝古人传;(),河水淘沙渐渐深。”这首民歌非常贴切地表述了民间文学的集体性特征。
结构设计说明是带全局性的文字说明,它包括设计依据,工程概况,自然条件,选用材料的类型、质量、强度等级,构造要求。()
A. 正确
B. 错误
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
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.