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. The instance contains a database named DB1. An application which is continuously connected uses DB1. The application extensively uses the INSERT command and triggers the population of multiple tables. Now you notice that the application has a poor performance. You doubt that this problem has something to do with blocking. You have to monitor the state of the instance at regular intervals while not affecting the application performance further. Which tool should you use? （） You should use Dynamic Management Views 。 You should use SQL Server Resource Governor 。 You should use SQL Server Profiler 。 You should use Windows System Monitor。
文艺复兴时期有四个核心的价值理念，西方一些国家的价值观提炼都来自于这四个核心理念，分别是（）。 个性。 理性。 人性。 诗性。
You are developing a Windows Communication Foundation (WCF) service that does not operate on a duplex channel.You find that operations do not start until all previous operations have finished. The service hosting code contains the following lines.var service = new WarehouseService(); var host = new ServiceHost(service);You need to ensure that new operations do not wait for previous operations to finish. Which attribute should you use to decorate the service?（） [ServiceBehavior(InstanceContextMode=InstanceContextMode.Single, ConcurrencyMode=ConcurrencyMode.Multiple)]。 [CallbackBehavior(ConcurrencyMode=ConcurrencyMode.Multiple)]。 [ServiceBehavior(InstanceContextMode=InstanceContextMode.Single, ConcurrencyMode=ConcurrencyMode.Single)]。 [ServiceBehavior(InstanceContextMode=InstanceContextMode.Single, ConcurrencyMode=ConcurrencyMode.Reentrant)]。
当 Web 应用关闭后，你需要人工释放资源。为此，你应该响应哪一个事件？（） Application_BeginRequest。 Application_End。 Application_Start。 Application_EndRequest。
《论语》
在组织形象识别系统中，被简称为MI的是（）
