[单选] 下面哪些滤镜只对 RGB 图像起作用？（）

You use Microsoft .NET Framework 4 to create an application.  The application performs resource-intensive calculations that consist of multiple layers of nested looping. The application will be deployed to servers that contain varying hardware configurations.  You need to ensure that the application utilizes CPU resources on the server in the most efficient manner.  You want to achieve this goal by using the minimum amount of code.  What should you do?（） Use multiple System.Threading.Thread objects.。 Use the background worker process (BWP).。 Use the Thread.BeginInvoke method.。 Use the Parallel.For method.。 自然人企业 You are a network administrator for your company. The network consists of a single Active Directory forest that contains three domains. The functional level of the forest and of all three domains is Window Server 2003. The company has a main office and 30 branch offices. Each branch office is connected to the main office by a 56-Kbps WAN connection. You configure the main office and each branch office as a separate Active Directory site. You deploy a Windows Server 2003 domain controller at the main office and at each branch office. Each domain controller is configured as a DNS server.   You can log on to the network from client computers in the branch offices at any time. However， users in the branch offices report that they cannot log on to the network during peak hours.   You need to allow users to log on to the network from branch office computers. You do not want to affect the performance of the branch office domain controllers. You need to minimize Active Directory replication traffic across the WAN connections.   What should you do？ （）  Use Active Directory Sites and Services to enable universal group membership caching for each branch office site.。  Use the DNS console to configure the branch office DNS servers to forward requests to a DNS server in the main office.。  Use Active Directory Sites and Services to configure each branch office domain controller as a global catalog server.。  Use the DNS console to configure the branch office DNS servers to use an Active Directory-integrated zone.。 You are an enterprise administrator for Cer-tech .com. The corporate network consists of a single ActiveDirectory domain. The company runs Windows Server 2008 on all the servers on the network. One of theservers， Server01 has the Windows SharePoint Services （WSS） server role installed on it. Which of thefollowing options would you choose to configure WSS server in such a way that it allow users to createdistribution lists from a SharePoint site？（） Modify the outgoing mail character set.。 Configure the SharePoint site to accept messages from authenticated users only.。 Enable the SharePoint Directory Management Service on Server0 1.。 Use the default Rights Management server in Active Directory Domain Services to configure the SharePoint site.。 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  The application must redirect the original URL to a different ASPX page.  You need to ensure that the users cannot view the original URL after the page is executed. You also need to ensure that each page execution requires only one request from the client browser. What should you do？ （） Use the Server.Transfer method to transfer execution to the correct ASPX page.。 Use the Response.Redirect method to transfer execution to the correct ASPX page.。 Use the HttpContext.Current.RewritePath method to transfer execution to the correct ASPX page.。 Add the Location： new URL value to the Response.Headers collection. Call the Response.End（） statement. Send the header to the client computer to transfer execution to the correct ASPX page.。 下面哪些滤镜只对 RGB 图像起作用？（）