1. The real question was mailed through the school's research. 2 ... Multiple papers (core journals, first author) are only aimed at the requirements of "candidates with the same academic ability", that is, candidates who have not graduated from four-year undergraduate courses. (My understanding is that this is called academic performance or work performance) 3. Some books are like that, and so are ten or twenty years. For example, Advanced English for English majors (edited by Zhang Hanxi) has not changed for many years. Some old and new versions must be read, such as ours. For reference only. [] View original post >>