Judgment: in a circle, there are innumerable diameters, so the circle has innumerable axes of symmetry

Correct, because the straight line with the diameter of the circle divides the circle into exactly the same two parts. After the diameter is folded in half, the two parts can completely coincide, so the straight line with the diameter is the axis of symmetry of the circle. If there are countless diameters, there are also countless axes of symmetry

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