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A math dynamic problem in grade three.
Solution: As shown in the figure, extend AE and BF to point H respectively.

∠∠A =∠FPB = 60,

∴AH∥PF,

∠∠B =∠EPA = 60,

∴BH∥PE,

∴ Quadrilateral EPFH is a parallelogram,

∴EF and HP are equally divided.

∴G is the midpoint of HP,

The midpoint of ef is g,

When p moves from point c to point d, g is always the midpoint of PH,

∴G's trajectory is the center line MN of triangle HCD,

And ∵MN∨CD,

The distance from ∴G to straight line AB is a certain value,

The approximate image of the functional relationship between ∴y and the movement time x of point P is a ray parallel to the Y axis (x ≥ 0).

So choose D.