Question 1:C

Question 2:B

Question 3:C

Question 1: According to the information in the picture, the daily temperature difference is gradually increasing, indicating that the weather is fine. High pressure forms sunny weather. Select item C.

Question 2: According to the information in the figure, the temperature on 12 is low, indicating that the cold front has an inverse temperature and the airflow is stable, which is not conducive to the diffusion of pollutants. Select item B.

Question 3: According to the long day, the short night is close to 12 hours, and the day is longer, so the time is between 12.22 and March 2 1, which is close to March. The correct one is item C.