Study on the heterogeneity of competitiveness and export trade of Chinese manufacturing enterprises 并列题名：Study on the heterogeneity of competitiveness and export trade of Chinese manufacturing enterprises Study on foreign market entry mode selection of Chinese manufacturing enterprises Firm multiple heterogeneity and export competitiveness of Chinese manufacturing industries Research on the efficiency of digital transformation in Chinese manufacturing enterprises Research on the evaluation of competitiveness of Chinese publishing enterprises Study on the interaction and coordination of goods management and capital operation in manufacturing enterprises 并列题名：Firm multiple heterogeneity and export competitiveness of Chinese manufacturing industries 并列题名：Study on foreign market entry mode selection of Chinese manufacturing enterprises A Study on the Competitiveness of Chinese Publishing Enterprises