You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application contains the following code segment：  
public class CapabilityEvaluator  { 
public static bool ChkScreenSize（System.Web.Mobile.MobileCapabilities cap， String arg） { int screenSize = cap.ScreenCharactersWidth * cap.ScreenCharactersHeight；  
return screenSize < int.Parse（arg）；
  } 
}   
You add the following device filter element to the Web.config file：  
<filter name="FltrScreenSize" 
  type="MyWebApp.CapabilityEvaluator，MyWebApp"   
method="ChkScreenSize" />   
You need to write a code segment to verify whether the size of the device display is less than 80 characters. 
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. You create an AJAX-enabled Web form by using the following code fragment：   <asp：ScriptManager ID= scrMgr  runat= server   >   <asp：UpdatePanel runat= server  ID= updFirstPanel  UpdateMode= Conditional >   <ContentTemplate>   <asp：TextBox runat= server  ID= txtInfo   >   <asp：Button runat= server  ID= btnSubmit  Text= Submit   >   < ContentTemplate>   < asp：UpdatePanel>   <asp：UpdatePanel runat= server  ID= updSecondPanel  UpdateMode= Conditional >  <ContentTemplate> ...  < ContentTemplate>   < asp：UpdatePanel>    When the updFirstPanel UpdatePanel control is updated， a dynamic client script is registered. You write the following code segment in the code-behind file of the Web form：   01 protected void Page_Load（object sender， EventArgs e）   02 {   03   if（IsPostBack）   04   {   05     string generatedScript = ScriptGenerator.GenerateScript（）；   06   07   }   08 }    You need to ensure that the client-script code is registered only when an asynchronous postback is issued on the updFirstPanel UpdatePanel control.  Which code segment should you insert at line 06？ （）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You write the following code segment to create a JavaScript file named CalculatorScript.js：   function divide（a， b） {  if （b == 0） {   var errorMsg = Messages.DivideByZero；  alert（errorMsg）； return null；   }  return a b；   }   You embed the CalculatorScript.js file as a resource in a Class Library project.  The namespace for this project is Calculator.Resources.   The JavaScript function retrieves messages from a resource file named MessageResources.resx by using the JavaScript Messages object.  You add an AJAX Web form in the ASP.NET application. You reference the Class Library in the application.  You add an ASP.NET AJAX ScriptReference element to the AJAX Web form.  You need to ensure that the JavaScript function can access the error messages that are defined in the resource file.  Which code segment should you add in the AssemblyInfo.cs file？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a Web form in the application by using the following code fragment：   01 <script runat= server >   02 protected void Button_Handler（object sender， EventArgs e）   03 {   04     some long-processing operation.  05 }   06 < script>   07 <div>   08 <asp：ScriptManager ID= defaultScriptManager    09   runat= server   >  10   11 <asp：UpdatePanel ID= defaultPanel    12   UpdateMode= Conditional  runat= server >  13   <ContentTemplate>   14   <!-- more content here -->   15   <asp：Button ID= btnSubmit  runat= server 16     Text= Submit  OnClick= Button_Handler   >   17   < ContentTemplate>   18 < asp：UpdatePanel>   19 < div>    You plan to create a client-side script code by using ASP.NET AJAX.  You need to ensure that while a request is being processed， any subsequent Click events on the btnSubmit Button control are suppressed.  Which code fragment should you insert at line 10？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You write the following code fragment:   <asp:ScriptManager ID= ScriptManager1  runat= server   >   <asp:UpdatePanel ID= updateLabels  runat= server  UpdateMode= Conditional >   <ContentTemplate>   <asp:Label ID= Label1  runat= server   >   <asp:Label ID= Label2  runat= server   >   <asp:Button ID= btnSubmit  runat= server  Text= Submit    onclick= btnSubmit_Click   >  < ContentTemplate>   < asp:UpdatePanel>   <asp:Label id= Label3  runat= server   >    You need to ensure that when you click the btnSubmit Button control, each Label control value is asynchronously updatable.  Which code segment should you use?（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You plan to add a custom parameter in the SqlDataSource control. You write the following code fragment：   <asp：SqlDataSource ID= SqlDataSource1  runat= server    InsertCommand= INSERT INTO [Employee] （[Field1]， [Field2]， [PostedDate]）    VALUES （@Field1， @Field2， @PostedDate） >  <InsertParameters>   <asp：Parameter Name= Field1   >   <asp：Parameter Name= Field2   >   <custom：DayParameter Name= PostedDate   >  < InsertParameters>   < asp：SqlDataSource>    You write the following code segment to create a custom parameter class：   public class DayParameter ： Parameter { } You need to ensure that the custom parameter returns the current date and time. Which code segment should you add to the DayParameter class？ （）

A.A
B.B
C.C
D.D