Rearch on the effect of assurance of internal control on the reliability of financial reporting 并列题名：Rearch on the effect of assurance of internal control on the reliability of financial reporting Relationship between the effectiveness of internal control system and the rellability of financial report 并列题名：Relationship between the effectiveness of internal control system and the rellability of financial report Case study on the ineffectiveness of internal control over financial reporting Study on the effect of private finance on the stability of China's financial system