单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  The application uses a set of general-purpose utility classes that implement business logic. These classes are modified frequently.  You need to ensure that the application is recompiled automatically when a utility class is modified.  What should you do？（）

单项选择题 You create a Microsoft ASP.NET Web application by using the Microsoft .NET Framework version 3.5.  The Web site uses C# as the programming language. You plan to add a code file written in Microsoft VB.NET to the application. This code segment will not be converted to C#. You add the followingcode fragment to the Web.config file of the application.  <compilation debug="false"> <codeSubDirectories>  <add directoryName="VBCode"/>  </codeSubDirectories>  </compilation>  You need to ensure that the following requirements are met： &iexcl；&curren;The existing VB.NET file can be used in the Web application &iexcl；&curren;The file can be modified and compiled at run tim  What should you do？（）

单项选择题 You create a Microsoft ASP.NET Web application by using the Microsoft .NET Framework version 3.5.  The Web site uses C# as the programming language. You plan to add a code file written in Microsoft VB.NET to the application. This code segment will not be converted to C#. You add the following code fragment to the Web.config file of the application.  <compilation debug="false">  <codeSubDirectories>  <add directoryName="VBCode"/> </codeSubDirectories>  </compilation>  You need to ensure that the following requirements are met：  &iexcl；&curren;The existing VB.NET file can be used in the Web application  &iexcl；&curren;The file can be modified and compiled at run time  What should you do？（）