△RiskDis:Difference in the number of risk keyword terms between the two years before and after the annual report ,△RiskDis2:Difference in the number of words of risk keywords between the two years bef
△RiskDis:Difference in the number of risk keyword terms between the two years before and after the annual report ,△RiskDis2:Difference in the number of words of risk keywords between the two years bef