一、“七五”以来产业结构变动的基本特点及评价“七五”以来,随着经济的快速发展和科学技术的进步,我市产业结构发生了较大变化,主导产业发生更替,基础产业“瓶颈制约”减弱,形成了一些新特点,主要是:1、第三产业成为国民经济的主体。“七五”以来,我市第三产业继续以高于第一、二 I. Basic Characteristics and Evaluation of the Industrial Structure Change Since the Seventh Five-Year Plan Since the Seventh Five-Year Plan, with the rapid economic development and the progress of science and technology, the industrial structure of the city has undergone major changes, leading industries have changed, and the basic industries The “bottleneck restriction” weakened and some new features were formed. The main ones were: 1. The tertiary industry became the mainstay of the national economy. Since the “Seventh Five-Year”, the tertiary industry in our city has continued to surpass the first and second