Of course. It is a common practice in many academic institutions and research fields at home and abroad that the topic selection of graduate thesis can be combined with Chinese and English. The combination of Chinese and English thesis topics can better reflect the interdisciplinary nature of the research field, which is convenient for readers at home and abroad to understand and communicate.

However, the following points should be paid attention to when choosing the topic of a thesis combining Chinese and English:

1. Make sure the topic is concise and to the point, which can accurately summarize the research content and purpose. A topic that is too long or complicated may be difficult for readers to understand.

2. Pay attention to the correctness of grammar and vocabulary. Ensure that the Chinese and English parts are accurate and there will be no ambiguity.

3. According to specific requirements and regulations. Different schools or academic institutions may have different formats and requirements for thesis topics, and they need to abide by corresponding regulations.

In short, both English and Chinese topics can be used in the postgraduate thesis, and the choice should be kept simple and clear, in line with the regulations of the school or academic institution.