单项选择题
A. Use multiple System.Threading.Thread objects.
B. Use the background worker process (BWP).
C. Use the Thread.BeginInvoke method.
D. Use the Parallel.For method.
单项选择题 You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Framework (WPF) application. You have a page named myPage that contains the following code fragment. You need to ensure that other pages in your application can use CustomerNameBrush. What should you do? （）
单项选择题 You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. The application has a window named MainWindow that has a StackPanel control named sp as the root element. You want to create a Button control that contains a TextBlock control with the "Save" Text property. You need to create the control dynamically and add the control to sp. Which code segment should you write in the constructor of the MainWindow class?（）
单项选择题 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?（）