根据对问题中题目的理解，利用文献资料，本文认为可以概括为：成本（学费）

Based on the understanding of the topic in the question and the use of literature, this article believes that it can be summarized as: cost (tuition), R&D expenditure, enrollment rate, number of teachers, number of schools, number of foreign students, number of patents, employment rate, and degree value. After further analysis, this article divides it into three categories: educational investment, educational opportunity, and educational effectiveness. In view of the fact that the standards in the question are relatively general, in order to reflect the actual situation, we believe that the same standard can belong to the above three categories at the same time, so as to get the classification situation. After analyzing the internal structure contained in the question, a three-level higher education health and sustainability evaluation index system can be obtained, as shown in the figure

According to the understanding of the topic in the problem, using the literature, this paper can be summarized as: cost (tuition), research and development funds, enrollment rate, number of teachers, number of schools, number of international students, number of patents, employment rate, degree value nine aspects. After further analysis, this paper divides it into three types of research: educational input, educational opportunity and educational effectiveness. In view of the generality of the criteria in question, and in order to reflect the actual situation, we believe that the same criteria could be subsumed to the three categories mentioned above at the same time, thus obtaining classification. The internal structure contained in the analysis of the problem can obtain three levels of higher education health and sustainable evaluation index system, as shown in the figure

According to the understanding of the topic in the question, using the literature, this paper thinks that it can be summarized as: cost (tuition), R & D funds, enrollment rate, number of teachers, number of schools, number of foreign students, number of patents, employment rate, degree value nine aspects. After further analysis, this paper divides it into three categories: education investment, education opportunity and education effect. In view of the generality of the criteria in the question, in order to reflect the actual situation, we believe that the same criteria can be subordinate to the above three categories at the same time, so as to get the classification. By analyzing the internal structure of the problem, we can get a three-level health and sustainable evaluation index system of higher education, as shown in the figure<br>