As shown in the figure, "Average temperature and annual precipitation in China, Beijing, Harbin, Guangzhou and Wuhan in June+10 and July". Look at the picture and answer the questions. (1) A stands fo

As shown in the figure, "Average temperature and annual precipitation in China, Beijing, Harbin, Guangzhou and Wuhan in June+10 and July". Look at the picture and answer the questions. (1) A stands for. (1)A stands for the average temperature curve of 1, from which it can be seen that the national temperature in this season is characterized by the great difference between the north and the south in winter, the warmth in the south, and the lower the temperature as you go north, which is mainly due to the influence of latitude factors and winter winds. B stands for the average temperature curve in July. The national temperature in this season is characterized by high temperature in the north and south in summer.

(2) According to the characteristics of temperature in China, the temperature difference between the north and the south is large in winter, the south is warm, and the farther north, the lower the temperature. It can be judged that C, D, E and F are Harbin, Beijing, Wuhan and Guangzhou respectively.

(3) The influence of monsoon is the main reason for the uneven distribution of precipitation in time and space. Under the influence of summer monsoon, the precipitation gradually decreases from the southeast coast to the northwest inland. The annual precipitation is concentrated in summer, and the winter precipitation is generally less than 10% of the annual precipitation.

(4) There are obvious differences between our northern houses and southern houses. Due to the influence of precipitation, the slope of the roof is getting smaller and smaller from south to north, and the thickness of the house is getting thicker and thicker from south to north due to the influence of temperature.

So the answer is: (1)1; In winter, the temperature difference between north and south is large, the south is warm, and the farther north, the lower the temperature; Winter wind; 7; In summer, the temperature is generally high in the north and south; (2) Harbin; Beijing; Wuhan; Guangzhou; (3) the southeast coast; Northwest inland; Summer; (4) precipitation; Small; Temperature; Thick.