题目内容

真空式脉冲澄清池的充水时间为一般为（）s。

A. 15~20
B. 20~25
C. 25~30
D. 35~40

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Your company has an Active Directory domain that runs Windows Server 2008 R2. The Sales OU contains an OU for Computers， an OU for Groups， and an OU for Users. You perform nightly backups. An administrator deletes the Groups OU. You need to restore the Groups OU without affecting users and computers in the Sales OU. What should you do（）

A. Perform an authoritative restore of the Sales O
B. Perform an authoritative restore of the Groups O
C. Perform a non-authoritative restore of the Groups O
D. Perform a non-authoritative restore of the Sales O

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You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB01 in the instance. The company CIO wants all the application developers can capture traces to troubleshoot the application that uses the database DB1， and they can perform this by using SQL Server Profiler. But they have to be given as little permission as possible. The company CIO assigns this task to you. So what action should you perform to achieve this goal？（）

All the SQL Server logins of the application developers have to be added to a fixed server role.
B. All the database users of the application developers have to be added to a fixed database role
C. All SQL Server logins of the application developers should be given the appropriate server-level permissions.
D. All database users of the application developers should be given the appropriate database-level permissions.&e

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能柔肝止痛的药物是（）

A. 当归
B. 柴胡
C. 白芍
D. 郁金
E. 吴茱萸

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自由沉降的意思是（）。

A. 颗粒在沉降过程中受到的流体阻力可忽略不计
B. 颗粒开始的降落速度为零，没有附加一个初始速度
C. 颗粒间不发生碰撞或接触的情况下的沉降过程

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真空式脉冲澄清池的充水时间为一般为（）s。

A. 15~20 B. 20~25 C. 25~30 D. 35~40

能柔肝止痛的药物是（）

自由沉降的意思是（）。

A. 15~20
B. 20~25
C. 25~30
D. 35~40