The growth of professors of senior teachers in middle schools of Jiangsu Province is very complex, but there is a cyclic process of teaching, study and research interaction throughout their growth.
江苏省教授级中学语文高级教师的成长是一个复杂的过程，总体呈现教学研同期互动的特征。
In this paper, transaction costs and the value chain and supply-chain theory as the theoretical basis for the main study, and research throughout the entire process.
本文以交易成本和价值链及供应链理论为主要研究理论基础。
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