If there is cold front weather in China in July, its distribution area should be: (

The answer is correct. It is clearly written in the first paragraph on the right of Section 5, Unit 2, Volume 1, Geography of Senior One, that the weather formed by cold front includes summer rainstorm, winter and spring cold wave and sandstorm weather in northern China. This is caused by a fast moving cold front.

The northern region is close to the source of cold air, and the temperature in the north and south of China is generally high in summer, so the temperature in the north is warmer, so the cold air from Siberia meets the warm air mass in North China to form a front, and the strength of the cold air mass is far stronger than that of the warm air mass, so a cold front is formed. Such a cold air mass can't reach the Jianghuai, South China and Southeast Coast in summer, because the lower the latitude in summer, the stronger the warm air mass, and a warm front has formed in these places, so it is also true in North China.