1, manual duplicate checking: compare the text of the paper with other papers to check whether there is plagiarism. This method is simple, but it is inefficient and error-prone, because it may take a long time to compare if the amount of text is large.

2. Use duplicate checking software to check duplicates: This method can automatically compare the text of the paper and count the results of duplicate checking, so as to quickly and accurately detect the originality of the paper. This method can effectively reduce the duplicate checking time and make the duplicate checking result more accurate.

3. Use the Internet to check the duplicate: This method can automatically search the papers on the Internet and compare the search results with the papers, thus checking the originality of the papers. This method can effectively detect whether plagiarism exists in papers, and its efficiency is higher than other methods.

4.cnkitime academic misconduct papers check the free website. There is no limit to the number of duplicate articles in undergraduate edition (final graduation thesis of major/undergraduate), postgraduate edition (final graduation thesis of master) and periodical title edition (periodical submission and title evaluation).

In a word, there are many ways to check the duplicate. Considering efficiency, accuracy and cost comprehensively, it is the best choice to use duplicate checking software and network duplicate checking.