“Library of Chinese Proficiency Test Center” collects academic works written by 12 teachers of Chinese Proficiency Test Center. It collects the writers’ published papers on language testing and other related fields, as well as some latest research findings. This is one of the 12 books of the series. The collected 13 papers by Li Guimei of Chinese Proficiency Test Center, Beijing Language and Culture University mainly involve Chinese language testing, study of modern Chinese grammar and so on.