马克思说过:“当我们从政治经济学方面观察某一国家的时候,我们从该国的人口、人口的阶级划分、人口在城乡海洋的分布、在不同生产部门的分布,输出和输入,全年的生产和消费,商品价格等等开始。”恩格斯则提出了“两种生产” (人的生产与物的生产)“决定人类历史的发展”这样一条根本原理。根据马克思和恩格斯提出的科学理论,我们研究世 Marx said: “When we look at a country from the perspective of political economy, we draw from the country’s population, the class division of the population, the distribution of population in the urban and rural areas, the distribution, output and input in different productive sectors Years of production and consumption, the price of commodities, etc. ”Engels proposed the underlying principle that“ two kinds of production ”(the production of man and the production of goods)“ determine the development of human history. ” According to the scientific theories put forward by Marx and Engels, we study the world