In addition, the author has used a large number of arguments and cases to confirm the theory obtained. This is also a scientific and systematic research method, which is worth learning.
And the author's theory of summary is confirmed by a large number of arguments and cases. This is also a scientific, systematic way of research, worthy of my study.
And the author summarized the theory, through a large number of arguments and cases to verify. This is also a scientific and systematic research method, which is worth learning.<br>