The following is a description of the weather conditions in the episode "Song Gong Ming Captures Suo Chao in the Snow" in "Water Margin". After reading, answer the following questions. "It's a day with no crystal light,

Small question 1: D?

Small question 2: C

Test question analysis: < /p>

Quick Question 1: Read the material. It was mid-winter at that time, which means it was winter. It snowed heavily for a day, and it was about as deep as a horse's knees. This means it was heavy snow, and it was a blizzard. Blizzard weather in winter is affected by cold front activity, D is right. Picture A is a low pressure center with cyclone activity. There is basically no cyclone activity in my country's monsoon climate zone in winter. A is wrong. In winter, cold fronts are mainly active in our country, and warm fronts will not cause blizzard weather. B is wrong. Picture C is a high pressure center and there will be no snowfall. C is wrong.

Small question 2: Based on the previous analysis, this weather system is a cold front activity. After the cold front passes, the area is controlled by a cold air mass. When affected by a single cold air mass, the air pressure is high, the temperature is low, and the weather is sunny. Correct C. A and B are wrong. Only the cold air mass is controlled, the air pressure difference per unit distance is small, the horizontal pressure gradient force is small, and the wind force is small, D is wrong.