1. Balancing the assessment of different aspects of students' abilities: the theory examination can measure students' understanding and memorization of knowledge, while the practical examination can assess students' skills and application abilities in actual operation. By setting the proportion of both scores equal, we can ensure that students have sufficient opportunities to perform in both theory and practice, and avoid overly favoring one aspect that leads to inaccurate assessment results.

2. Encourage students to focus on the integration of theory and practice in the learning process: Students not only need to demonstrate their mastery of knowledge through theoretical exams, but also need to demonstrate their practical ability through practical exams. Comprehensive assessment can encourage students to focus on the combination of theory and practice in the learning process, and cultivate students' practical application and problem-solving abilities. It is also in line with the demand for talent in the real working environment, where theoretical knowledge and practical ability are equally important.