Compared with national audit, the characteristics of internal audit are (). [Intermediate real questions in 28]

Answer: A, B

The characteristics of internal audit include: ① Internal audit serves inward; ② The field of internal audit is extensive; ③ Internal audit is independent of the operation and management activities of the unit, but it is also restricted by the unit; The audit report of internal audit is generally only used within the unit; ⑤ The audit procedure is relatively simple; ⑥ The review work is timely; ⑦ Audit suggestions are easy to be adopted. CD two items are the characteristics of national audit; Item e is the characteristic of social audit.