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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