Duplicate checking is a headache for many people, because once the paper is repeated too much, your paper will not be written well. Because it is plagiarized, duplicate checking is very important. But many students know that the price of online duplicate checking is really expensive. 200 yuan for an undergraduate thesis will be small. If you check it three or four times, it is estimated that you will not be able to eat any soil this month. You must choose a reliable free duplicate checking website to ensure the safety and accuracy of the paper. Pt is more professional, because many schools can use it, so I suggest you use it.