找规律,填上合适的数:1,-4,9,-16,25,-36,49( )

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找规律,填上合适的数:1,-4,9,-16,25,-36,49( )
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找规律,填上合适的数:1,-4,9,-16,25,-36,49( )
找规律,填上合适的数:1,-4,9,-16,25,-36,49( )

找规律,填上合适的数:1,-4,9,-16,25,-36,49( )
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