单项选择题 You create a Microsoft ASP.NET Web application by using the Microsoft .NET Framework version 3.5.  The application contains the following device filter element in the Web.config file.  <filter name="isHtml" compare="PreferredRenderingType"argument="html32" />  The application contains a Web page that has the following image control. （Line numbers are included for reference only.）  01 <mobile：Image ID="imgCtrl" Runat="server">  02  03 </mobile：Image>  You need to ensure that the following conditions are met： &iexcl；&curren;The imgCtrl Image control displays he highRes.jpg file if the Web browser supports html.  &iexcl；&curren;The imgCtrl Image control displays lowRes.gif if the Web browser does not support html Which DeviceSpecific element should you insert at line 02？ （）

单项选择题 YoucreateaMicrosoftASP.NETapplicationbyusingtheMicrosoft.NETFrameworkversion3.5. YoucreatealoginWebformbyusingthefollowingcodefragment. |English|Chinese|Japan|Korean|-153-TestInformationCo.，Ltd.Allrightsreserved. WhenauserclicksthebtnLoginButtoncontrol，thelogin（）client-sidescriptiscalledtoauthenticatethe user.ThecredentialsprovidedintheTextBoxcontrolsareusedtocalltheclient-sidescript. Youalsoaddthefollowingclient-scriptcodefragmentintheWebform.（Linenumbersareincludedforreferenceonly.） 01 TheASP.NETapplicationisconfiguredtouseFormsAuthentication.TheASP.NETAJAXauthentication serviceisactivatedintheWeb.configfile. Youneedtoensurethatthefollowingworkflowismaintained： &iexcl；¤Onsuccessfuauthentication，theonLoginCompletedclient-scriptfunctioniscalledtonotifytheuser. |English|Chinese|Japan|Korean|-154-TestInformationCo.，Ltd.Allrightsreserved.&iexcl；¤Onfailureofauthentication，theonLoginFailedclien-scriptfunctioniscalledtodisplayanerrormessage. Whichcodesegmentshouldyouinsertatline06？（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a login Web form by using the following code fragment. <asp：ScriptManager ID="ScriptManager1" runat="server" />  <asp：TextBox runat="server" ID="txtUser" Width="200px" />  <asp：TextBox runat="server" ID="txtPassword" Width="200px" />  <asp：Button runat="server" ID="btnLogin" Text="Login" OnClientClick="login（）； return false；" /> When a user clicks the btnLogin Button control， the login（） client-side script is called to authenticate the user. The credentials provided in the TextBox controls are used to call the client-side script. You also add the following client-script code fragment in the Web form. （Line numbers are included for  | English | Chinese | Japan | Korean | - 151 - Test Information Co.， Ltd. All rights reserved. reference only.）  01 <script type="text/javascript">  02 function login（） {  03 var username = $get（’txtUser’）.value；  04 var password = $get（’txtPassword’）.value；  05  06 // authentication logic.  07 }  08 function onLoginCompleted（validCredentials， userContext，  09 methodName）  10 {  11 // notify user on authentication result.  12 }  13  14 function onLoginFailed（error， userContext， methodName）  15 {  16 // notify user on authentication exception.  17 }  18 </script>  The ASP.NET application is configured to use Forms Authentication. The ASP.NET AJAX authentication  service is activated in the Web.config file.  You need to ensure that the following workflow is maintained：  &iexcl；&curren;On successful authentication， the onLoginCompleted clien-script function is called to notify the user.  &iexcl；&curren;On failure of authentication， the onLoginFailed clien-script function is called to display an error message.  Which code segment should you insert at line 06？（）