The duplicate checking entrance of China Knowledge Network is the entrance to submit papers for testing. If the school can provide free HowNet testing, you can generally go to the website of the Academic Affairs Office or the postgraduate website to inquire about the corresponding notice, which will have the duplicate check entry address of the school HowNet.

If our school can't check the copy of HowNet for free, then you need to find the real entrance of HowNet, but it's a mixed bag, so be careful.