单项选择题
A.public class HesitateInterpolator extends InterpolatorsB.public class HesitateInterpolator implements InterpolatorsC.public class HesitateInterpolator extends InterpolatorD.public class HesitateInterpolator implements Interpolator
A.DecelerateInterpolatorB.AccelerateInterpolatorC.LinearInterpolator D.AccelerateDecelerateInterpolator
A.ScaleAnimation B.AlphaAnimationC.TranslateAnimationD.RotateAnimation