The remedial class is an extracurricular tutoring institution with the purpose of improving grades. It is also commonly known as: extracurricular remedial classes, study remedial classes, and military examination remedial classes.
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.