(1)2 point d
(2) The temperate monsoon climate is 6 minutes, with sufficient light and heat in summer, abundant precipitation and good coordination of water and heat (or the same period of rain and heat); Located in the North China Plain, the terrain is flat and open; The soil is deep and fertile.
(3) National policy support 4 points; Scientific and technological development; Implement industrialized management (expand the scale of grain production).
(4) control the population by 4 points; Effectively protect cultivated land; Increase investment in science and technology and increase output; Formulate policies to protect farmers' enthusiasm for growing grain; Disaster prevention and mitigation; Regional and professional development.
(1) As can be seen from the figure, D stands for Beijing-Kowloon Railway.
(2) pay attention to the analysis of natural conditions, such as climate (sufficient light and heat), topography, soil, water, etc.
(3) The main reasons for the highest grain output in Henan Province should be analyzed from the social and economic aspects.
(4) Facing the problem of China's large population and small land, we should make policy analysis on population control through science and technology.