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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;¤The imgCtrl Image control displays the highRes.jpg file if the Web browser supports html
&iexcl;¤The imgCtrl Image control displays lowRes.gif if the Web broser does not support html. 
Which DeviceSpecific element should you insert at line 02? ()

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

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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?()

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