The starting and ending time of VIP system paper writing: according to the time when you write a paper, it is generally divided into three stages.

For example, if your thesis is completed within one year, divide the year into several time periods:

The first stage (starting and ending year-ending year): usually collecting and selling materials, sorting out, determining writing ideas, technical routes, paper outlines, model analysis, method application, etc.

The second stage (from 1 year): which parts of the paper are completed.

The third stage (start date-end date)