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There may be several formulas for the distance from point A to point B on the ground. ( )

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All the roots of a cubic equation can be calculated by the Cardano formula. ( )

“Minister opening” in Chinese chess implies the balance between the offense and the defense in the case of playing chess. ( )

The straggler said: I am getting closer and closer to the army. Here the distance between the soldier and the army refers to the distance between the soldier and the furthest person in the army. ( )

Continuous functions can’t be approximated by discontinuous function sequences. ( )

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