单选题You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You create a game where a ball drops from the top to the bottom of a window. You plan to create a single animation for the game. You need to ensure that the animation shows the ball bounce. What should you do?（）AUse the KeySpline property of a SplineDoubleKeyFrame object.BUse the EasingFunction property of an EasingDoubleKeyFrame object.CUse the DecelerationRatio and AutoReverse properties of a StoryBoard object.DUse the DecelerationRatio and AccelerationRatio properties of a StoryBoard object.
单选题
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You create a game where a ball drops from the top to the bottom of a window. You plan to create a single animation for the game. You need to ensure that the animation shows the ball bounce. What should you do?（）
A
Use the KeySpline property of a SplineDoubleKeyFrame object.
B
Use the EasingFunction property of an EasingDoubleKeyFrame object.
C
Use the DecelerationRatio and AutoReverse properties of a StoryBoard object.
D
Use the DecelerationRatio and AccelerationRatio properties of a StoryBoard object.
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