There is a charge for checking duplicate documents. The paper duplicate checking system provided by the school will generally give students 1~2 free paper duplicate checking opportunities. For example, the undergraduate thesis is submitted to pmlc system for duplicate checking, and the master thesis is checked in VIP5.3 system, and the duplicate checking result is obtained within 1~3 hours after uploading.

In addition to the free duplicate checking opportunities provided by the school, some websites will also have free preferential activities for the first time, such as the paperfree paper detection system, which is suitable for duplicate checking of university papers, master's papers, journal papers and other papers. Duplicate checking can be done in Chinese, English and small languages, and students can recognize its professionalism. You can also get free duplicate search words through activities. You can use the free first draft to check the duplicate, then modify the duplicate check content, and try to pass the test within the number of duplicate checks given by the school, which will save the duplicate check cost.

Although it is reasonable to pay the re-examination fee, we should also make rational use of the free opportunities provided by the school to control the cost.