Check the contents of repeated inspection: 1. Check the text of the paper; 2. Check the abstract of the paper; 3. Check the end of the paper. Duplicate checking generally refers to the text part, excluding non-text contents such as pictures and formulas. Paper duplication checking will compare the content of the paper with the network resources. At present, there are many websites where papers are duplicated, but most schools only recognize the duplicate report of papers from HowNet. When writing a paper, all the words should be dealt with, because the words will be repeated. The paper's duplicate checking system will include a lot of Internet information for comparison with the paper. Therefore, don't take chances when studying the thesis. It is best to write down what you have learned in a down-to-earth manner.