Low. According to the relevant public information, the difficulty of NC submission is the lowest among the three major magazines. Naturecomm, called Little NC, is a comprehensive sci-tech periodical and a subordinate periodical of Nature. As a comprehensive periodical, it can include scientific research papers from different disciplines. The Periodical Department of China Academy of Sciences tried to downgrade it to the second district periodical. As a result, The Division of Periodicals in China was criticized by the scientific research community as soon as it was published. Finally, the Journal Department of the Chinese Academy of Sciences had to readjust the data and put the small NC back into a regional journal.