[单选]

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a page that contains the following code fragment：  
<asp：ListBox ID="lstLanguages" AutoPostBack="true" runat="server" />   
You write the following code segment in the code-behind file for the page：  
void BindData（object sender， EventArgs e） {  
lstLanguages.DataSource = 
CultureInfo.GetCultures（CultureTypes.AllCultures）；  
lstLanguages.DataTextField = "EnglishName"； 
lstLanguages.DataBind（）；  
}  
You need to ensure that the lstLanguages ListBox control maintains the selection of the user during postback. 
Which line of code should you insert in the constructor of the page？（）

Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.The Company.com employees use Microsoft Office Outlook to connect to their mailboxes.A Company.com employee named Rory Allen complains that he is unable to send encrypted e-mail messages to an external recipient client.Furthermore， both of these users use e-mail encryption certificates.Rory Allen needs to send encrypted e-mail messages to the external recipient client.What should you do？（） The best option is to inform Rory Allen to change the sensitivity settings of the e-mail message.。 The best option is to inform the external recipient client to add a delegate.。 The best option is to inform the external recipient client to send a signed e-mail message to Rory Allen.。 The best option is to inform Rory Allen to send a signed e-mail message to the external recipient client.。 焊接技能 When configuring Frame Relay using point-to-point subinterfaces, which of the following must not be configured?（） The local DLCI on each subinterface of the Frame Relay.。 The Frame Relay encapsulation on the physical interface.。 An IP address on the physical interface.。 The subinterface type as point-to-point。 Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.The Company.com employees use Microsoft Office Outlook 2007 to connect to their mailboxes.RPC over HTTP and Auto discover are configured on Microsoft Office Outlook 2007. Company.com has acquired a new Exchange Server 2010 server and moved the mailboxes to it.However， the employees find a problem to access their mailboxes. What should you do？（） You should consider using Outlook Anywhere and configure it.。 You should consider creating and set up a Client Access array.。 You should consider renaming the OWA virtual directory to Exchange.。 You should consider the Switchover Server option.。 关于发票的抬头，若信用证无明确规定，则以开证行为抬头人。

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a page that contains the following code fragment：  
<asp：ListBox ID="lstLanguages" AutoPostBack="true" runat="server" />   
You write the following code segment in the code-behind file for the page：  
void BindData（object sender， EventArgs e） {  
lstLanguages.DataSource = 
CultureInfo.GetCultures（CultureTypes.AllCultures）；  
lstLanguages.DataTextField = "EnglishName"； 
lstLanguages.DataBind（）；  
}  
You need to ensure that the lstLanguages ListBox control maintains the selection of the user during postback. 
Which line of code should you insert in the constructor of the page？（）