(1) C; Located in the upper reaches of the river, no pollution, good water quality; A Due to severe pollution, it should be in the area downwind of the prevailing wind; raw material zone, in suburbs perpendicular to the prevailing wind direction; B; No pollution and requires a large amount of labor, it is suitable for development in urban areas D; The dominant wind direction (2) should be on the hills of the eastern suburbs of the city, reason: in the wind direction, it can effectively prevent sandstorms, reduce pollution, protect water sources and beautify the environment.
This problem can be considered simple, but it can be considered very complex.
For example, a power plant is a dam. There are many people below who want water. If there are many people who want water, the dam will release more water. , barred himge will release less water. As for knowing that there are fewer people and more people? This requires generating electricity based on the annual load curve, the daily load curve and distributing orders from previous years. Typically, there are frequency and voltage regulation devices, as well as backup power generation capacity to handle the switching of large loads.