There are free repeated inspections every day.

Opportunity! The opening hours of Extreme Edition are between11.1-11.22 every day! (The speed version is free for no more than 5 times per person! Twice a day! )

2.Xuexin.com Wanfang System.

Every graduate has the opportunity to weigh himself for free! Go straight to Xue Xin. Find the graduation thesis and check it again! (Personally, I think Wanfang's database is not as complete as Paperyy Extreme Edition. One disadvantage of Wanfang's system is that the result is just a PDF file, which can only display repeated words, and there is no source! Not as detailed as Paperyy.

3. Source document (verification of final version)

The above two systems are free and suitable for modifying papers! Source Wen Jian is for peace of mind, as the final draft! It should be noted that this database does not include the discussion library built by the school. If it involves the papers of previous seniors, we must pay attention to reducing the proportion! Just in case!