You don't know which school and which expert you sent it to. External audit is much stricter than internal audit, and the result of external audit is also the final result. Generally, there will be several situations, such as resubmitting after revision (meaning delaying for half a year), replying after revision or agreeing to reply.

In-school review is generally conducted by teachers in their own colleges and put forward corresponding requirements. This general teacher will not embarrass the students in our school, but will give an agreed reply or a revised reply unless the paper is too bad; The submission of the college should refer to the internal audit, and the blind audit of the Ministry of Education is a spot check, which is equivalent to the external audit.