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單項選擇題

You are employed as a system administrator at Certkiller.com. You are curretly creating aMicrosoft ASP.NET application using Microsoft .NET Framework v3.5. 
The code fragment below is written to the application:
<asp:DropDownList AutoPostBack="true" ID="TestList" runat="server" 
onselectedindexchanged="TestList_SelectedIndexChanged">
<asp:ListItem>1</asp:ListItem>
<asp:ListItem>2</asp:ListItem>
<asp:ListItem>3</asp:ListItem>
</asp:DropDownList> 
The Web page contains a MultiView control named CKView. CKView consists of three child Viewcontrols. Management wants you to make sure that a DropDownList control named TestList canbe used to select the View controls. 
What should you do?()

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

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