单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a Microsoft Windows Communication Foundation (WCF) service that exposes the following  service contract. (Line numbers are included for reference only.)  01 [ServiceContract]  02 public interface IBlogService  03 {  04 [OperationContract]  05 [WebGet(ResponseFormat=WebMessageFormat.Xml)]  06 Rss20FeedFormatter GetBlog();  07 }  You configure the WCF service to use the WebHttpBinding class, and to be exposed at the following URL:  http://www.contoso.com/BlogService  You need to store the result of the GetBlog operation in an XmlDocument variable named xmlBlog in a Web form.  Which code segment should you use? （）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application consumes a Microsoft Windows Communication Foundation (WCF) service. The WCF service exposes the following method.  You need to invoke the UpdateCustomerDetails method.  Which code segment should you use?（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application consumes a Microsoft Windows Communication Foundation (WCF) service. The WCF service exposes the following method.  [WebInvoke]  string UpdateCustomerDetails(string custID);  The application hosts the WCF service by using the following code segment. WebServiceHost host = new WebServiceHost(typeof(CService),  new Uri("http://win/"));  ServiceEndpoint ep = host.AddServiceEndpoint(typeof(ICService),  new WebHttpBinding(), "");  You need to invoke the UpdateCustomerDetails method.  Which code segment should you use?（）