Read the following materials and answer the questions: Material 1: Detroit was founded in 170 1 year, and its industry grew steadily after 1830, and 1903 became the world's first automobile company.

(1) According to the calculation, Detroit is located in the West Sixth District, 0/4 hour away from the East Eighth District/kloc-. According to the principle of "East plus West minus", the Detroit time can be calculated as: February 4th morning10-February 3rd 14 hours = 65438+65438.

(2) Looking at the map, it is the five great lakes, the dairy industry, and the proximity to the (urban) market is the dominant factor.

(3) The Great Lakes are rich in water vapor, and the airflow from the Arctic Ocean passes through the Great Lakes and is blocked (lifted) by the Appalachian Mountains, resulting in snowfall; Coupled with the abnormal atmospheric circulation, it caused the snowstorm in the eastern United States.

(4) According to the meaning of the question, the industrial structure in this area is single; Influenced by Germany and other automobile industries; The impact of the oil crisis; Influenced by the new technological revolution and emerging industries, the city eventually went bankrupt for various reasons.

So the answer is: (1) 12? 3? 1 1

(2) Great Lakes dairy products market

(3) Abnormal atmospheric circulation in the northern hemisphere; The cold air activity in the Arctic Ocean is intense, invading southward; The Great Lakes region is full of water vapor; The Appalachian Mountains stopped it and brought a lot of snow.

(4) The industrial structure is single; The impact of the international market has reduced the market demand for its cars; The impact of new technologies and high-tech industries; Oil crisis; The impact of automobile industry in Japan, Germany and other countries; Real estate crash; The industrial structure is single.