not necessarily. Mainly depends on the contribution of the instructor in the paper. If the tutor has made a certain contribution to the guidance of the paper, you can sign the tutor. If the tutor has made little contribution, you can thank the tutor at the bottom of the first page of the paper. Such as: this article is thanks to the guidance of xxx instructor, and I would like to thank you.

the ranking of p>SCI paper authors should be ranked according to the actual contribution.

Generally speaking, the main writer of an article should be a student, so it is common that the student will be the first author and the teacher will be the correspondent. This should be the usual practice, but it does not rule out that the tutor must sign the first author, as in the first news.

Because students are teachers, many ideas of the paper are put forward by teachers, and the experimental funds and conditions are provided by teachers. Moreover, in the process of finalizing the paper, teachers are also responsible for rewriting, especially the essence of articles such as results discussion and conclusion, or the details of missing and filling in, all of which contain the efforts of teachers.

moreover, for scientific research, thoughts, ideas and discussions are more important in the contribution of the article. Therefore, it is generally reasonable for a tutor to be a correspondent, which is generally uncontroversial. It is suggested that new people take the initiative to sign their tutors as communication authors. Generally, tutors will not be too embarrassed.