The weather is vertical.

Question 1:B

Question 2: D.

Test analysis:

Question 1: Study common weather systems. According to the principle of frontal cyclone, it is known that th

Question 1:B

Question 2: D.

Test analysis:

Question 1: Study common weather systems. According to the principle of frontal cyclone, it is known that there is a warm front in the east and a cold front in the west, so C and D are excluded. According to the vertical profile of the weather system on a certain day in April of a certain year, the first is the control of cold air mass, and the second is the control of warm air mass. Combined with the schematic diagram of the front, A is excluded.

Question 2: According to the above question, the cold air mass in A is controlled and the temperature is low, and the sandstorm is affected by the cold front, excluding A; Before the front of the second layer of warm air mass, continuous precipitation, excluding B; According to the horizontal motion law of cyclones in the northern hemisphere-counterclockwise convergence, A is north and B is south, C is excluded.