According to what you have learned, determine when the twenty-four solar terms are.

Wrong answer: Spring and Autumn Revision: Analysis of the Warring States Period Answer: This question mainly examines the time when the twenty-four solar terms appeared. In the Spring and Autumn Period, it was wrong for people to set 24 solar terms a year in order to arrange agricultural production. The 24 solar terms in a year were determined in order to arrange agricultural production during the Warring States period, which is a great achievement in our calendar. Test center: is the new curriculum standard for the first volume of the seventh grade taught? The emergence of the country and the change of society? The Prosperity of China Culture (I)