Why did you choose this topic to write your thesis?

First of all, the reasons can be divided into the following three points:

1. Hobbies.

2. Current research hotspots in this field.

3. At present, some research achievements have been made at home and abroad.

4. At present, there are still unresolved problems in this field.

5. It has certain research value.

Second, according to the following statement:

1. This topic is a research hotspot in this field at home and abroad.

2. Research status at home and abroad. This topic has achieved some research results at home and abroad.

3. At present, there are still unresolved problems in this field, which are of research value.

4. state clearly what is attractive about this topic.