Fig. 3 is a schematic diagram of the position of frontal rain belt in a certain season in eastern China, and fig. 4 is a schematic diagram of four weather systems. Look at the picture and complete the

Fig. 3 is a schematic diagram of the position of frontal rain belt in a certain season in eastern China, and fig. 4 is a schematic diagram of four weather systems. Look at the picture and complete the next question. Question 1: Figure 3

Question 1:B

Question 2: A.

Question 1: As can be seen from the figure, the rain belt reaches North China and Northeast China, so it is about August and September at this time, so there are frequent typhoon activities in the southeast coastal areas of China, so B is chosen.

Question 2: According to the above question, it is August and September, and there is dry weather in the middle and lower reaches of the Yangtze River, which is controlled by anticyclone. The middle and lower reaches of the Yangtze River are in the northern hemisphere, so the central airflow sinks in the vertical plane and diverges clockwise from the center in the horizontal plane. Choose a.