How to write an article to see if others have written it?

You can check whether others have written articles in Wanfang official website. Wanfang Rong Zhi paper net, as a professional website for publishing periodical papers, provides academic exchange services such as topic selection, graduation thesis, academic thesis counseling, business plan planning and writing, periodical publishing, book publishing, patent design, subject research, etc. In order to better serve readers and customers, it has opened up exchange sections such as periodical common sense, writing skills, submission instructions, academic trends, periodical database and thesis database, and constantly innovated service fields to provide common sense for all kinds of article writing.