Papers on China Knowledge Network are generally paid, and a few are free. If you just log in to view the abstract, it is really free, but you have to pay a certain fee to China HowNet to download and browse the full text and edit it.

China HowNet is open to universities, research institutes and magazines for a fee. It's just that everyone can enter China Knowledge Network through the internal channels of the school, which is free. In other words, the school gave money, which was used by the teachers and students of the school to conduct academic research and download documents.

HowNet can download HowNet documents for free just by logging into the campus network and colleges. HowNet literature includes periodical papers, monographs, dissertations, patents, electronic documents and other forms.