No matter the district of icr or the district of Chinese Academy of Sciences, as long as they are journals in the district, they are internationally renowned academic journals. It is difficult for anyone to publish these periodicals, and it is difficult for ordinary authors, let alone write articles, which may have a certain threshold for the author's identity and status.

Journals in one region are not suitable for publication by different authors. Generally, what can be published in a field are some experts and scholars, professors from famous universities, or some researchers who have certain influence in their own majors.

The periodicals in the second district are second only to those in the first district, but the number of domestic authors in the second district is more. At present, some domestic standards explicitly require the publication of two or more periodicals, so two-zone periodicals are the first choice for many domestic authors. The publication of periodicals in the second district is slightly less difficult, but it depends on specific disciplines and periodicals. The general rule is that the periodicals in the second district are easier than those in the first district.

It will be less difficult to publish periodicals in three districts and four districts, but there are some disputes in China. It is precisely because of the above rigid requirements that some units and universities do not recognize publications below the second district. Therefore, many authors will think that the periodicals in three districts and four districts are not worth publishing and have no publishing value.

In fact, it is not easy for most ordinary authors to publish sci papers. There are also many units in China that recognize sci papers as long as they are published, and there are not too many requirements for division. In this case, periodicals in three districts and four districts can also be published.

Thesis is a Chinese word, and its pinyin is lùn wén, which is a common word in classical literature and refers to conversation or exchange of ideas.

Nowadays, papers are often used to refer to articles that conduct research in various academic fields and describe academic research results, which are referred to as papers for short. It is not only a means to discuss problems in academic research, but also a tool to describe academic research results in academic exchanges. Including academic papers, graduation papers, dissertations, scientific papers, achievement papers and so on.