单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application runs on Microsoft IIS 6.0. You create a page named oldPage.aspx.   You need to ensure that the following requirements are met when a user attempts to access the page：  the browser displays the URL of the oldPage.aspx page. the browser displays the page named newPage.aspx    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 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？（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a page that contains the following control：   <asp：Calendar EnableViewState="false" ID="calBegin" runat="server" />    You write the following code segment in the code-behind file for the page：   void LoadDate（object sender， EventArgs e） {   if （IsPostBack） {   calBegin.SelectedDate = （DateTime）ViewState["date"]；   }  }    void SaveDate（object sender， EventArgs e） { ViewState["date"] = calBegin.SelectedDate；   }   You need to ensure that the calBegin Calendar control maintains the selected date.  Which code segment should you insert in the constructor of the page？（）