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You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application that displays an image.You need to ensure that users can stretch and scale the image.Which control should you use？（）
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You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You plan to create a window that has a layout as shown in the following exhibit.You need to define the code fragment to create the window layout.Which code fragment should you use？（）
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You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You need to ensure that the application meets the following requirements:Displays a menu that is specific to the control selected by the user.Displays the menu next to the control.Which control should you use？ （）
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You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You need to ensure that users can view content in a book-reading format that displays two pages at a time.Which control should you use？（）
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You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You plan to create a window that has a layout as shown in the following exhibit.You need to define the code fragment to create the window layout. You also need to ensure that the window contains a splitter line.Which code fragment should you use？（）
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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？（）
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