D the market economy does not belong to the basic social system.

Since China's reform and opening up, a major breakthrough in the theoretical understanding that socialism can implement market economy is that market economy does not belong to the basic social system. Market economy is a way of resource allocation. Like the planned economy, it is an economic means and does not belong to the basic social system. Capitalism has a market, and so does socialism.

Extended data:

Important progress has been made in the reform of establishing a modern enterprise system in large and medium-sized state-owned enterprises. Most state-owned key enterprises have carried out the company system reform, and achieved remarkable results in turning losses into profits. The reform of large and medium-sized state-owned enterprises and the goal of extricating themselves from difficulties in three years have basically been achieved. With the further development of public ownership economy, private and individual economy has developed rapidly. The construction of the market system continued to advance, the capital, technology and labor markets developed rapidly, and the role of the market in resource allocation was significantly enhanced. The fiscal and taxation system continued to improve and the pace of financial reform accelerated. Great progress has been made in the reform of urban housing system, social security system and government institutions. The national macro-control system has been further improved.