“中国是世界文明发达最早的国家之一。”我国劳动人民在发展生产和发展科学技术方面有着卓越的贡献。马克思指出,劳动工具是社会生产与社会发展的尺度。在我国四五千年的文明史上,农业在整个生产中一直占有重要地位。随着农业生产的发展,劳动人民对农业生产工具的发明创造是丰富多采的。在上古文化遗址中.多有石斧、石刀、石铲、石锄、手磨 “China is one of the earliest developed countries in the world.” The working people in our country have made outstanding contributions in the development of production and in the development of science and technology. Marx pointed out that labor tools are the standard of social production and social development. In the history of four or five years of civilization in our country, agriculture has always occupied an important position in the entire production. With the development of agricultural production, the working people are rich and varied in the invention and creation of agricultural means of production. In the ancient cultural sites, there are more stone ax, stone knife, stone shovel, stone hoe, hand grinding