Traditional Culture Encyclopedia - Weather inquiry - In terms of airflow conditions, what is the weather system called? Why is it coincident or divergent?

In terms of airflow conditions, what is the weather system called? Why is it coincident or divergent?

(1)A, C (2) anticyclone high pressure center (3) rainy (4)2? Anti-cyclone control, sunny and dry weather, (5)A? The isobar is denser and the pressure gradient force is greater (6)M? n? Cold wind, cooling, rain and snow