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單項選擇題

You use Microsoft .NET Framework 4 to create a Windows application that can execute on client computers that run Windows Vista.
You are creating a User Account Control (UAC) application manifest for the application.
You need to ensure that users who are members of the local Administrators group do not receive a UAC prompt when the application executes.
Which code fragment should you use? （）

A.
B.
C.
D.

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單項選擇題

You use Microsoft .NET Framework 4 to create a Windows Forms application.
The application includes a RichTextBox control and a ListBox control. The ListBox control is populated with a list of valid file names.
The application allows users to drag a ListBox item to the RichTextBox control.
You need to provide a visual indication that a file that is dragged can be dropped on the RichTextBox control.
What should you do?（）

A. Use a DoubleAnimation class.
B. Use a Storyboard animation class.
C. Use the DragDropEffects enumeration.
D. Use the DragAction enumeration.

單項選擇題

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
The application uses the drag-and-drop functionality.
You need to ensure that the drag-and-drop operation is stopped when a user moves the cursor outside the boundaries of the application form.
Which enumeration member should you use?（）

A. DragAction.Cancel
B. DragAction.Drop
C. DragDropEffects.None
D. DragDropEffects.All