From the perspective of world history, from the perspective of national development, developed countries are the most developed group of countries. Because of the accumulation and exploitation of the whole modern times, most of the western countries have become developed countries, and the whole country is very developed. In particular, the United States is the most developed country in the world. Although China developed rapidly after World War II, especially in the 40 years of reform and opening up, China still lags far behind the developed countries, which is the main reason why China is still a developing country. < / P > < p > the United States is known as the most favored country by God, because it has developed fastest. In less than 200 years, it has rapidly grown into the world’s most developed country, with a per capita GDP of nearly 60000 US dollars, which can be called the extreme developed country. Most typically, China’s per capita GDP is less than one sixth of that of the United States, much poorer than that of the United States, and there is still a huge gap in politics, economy, culture, science and technology. Therefore, to be called a developed country like the United States has always been the dream of the Chinese people. However, although China is not yet a developed country, there are three points that are the most developed in the world, and even the United States can not catch up. < / P > < p > we know that infrastructure has always been the foundation of national development. Modern infrastructure is in the hands of the west, especially railways, highways, high-speed and so on. At present, China’s high-speed rail technology is the first in the world and the most developed in the world. And no matter from high-speed rail vehicles, speed, as well as the safety of operation, mileage, etc., are the world’s first. In the future, cities with a population of more than 500000 in China will be connected with high-speed rail, which can be called the first high-speed rail country. Although the United States is the most developed country, it will never catch up with China. < / P > < p > although the Internet originated in the United States, China is actually the paradise of the Internet, because China has the largest Internet population and a huge amount of Internet traffic. < / P > < p > the development of mobile payment in China has shocked the world. Basically, it has realized digitization without taking paper money. This is the most developed in the world, and even the United States will never catch up with it. < p > < p > logistics is the most fundamental circulation infrastructure of a country, and it is also the key to affect the flow of goods in a country. Therefore, the quality of logistics affects the overall situation. Today, throughout the world, China’s logistics industry is the most developed. No matter in terms of scale, design, delivery speed, delivery technology and so on, it is the world-class standard. < / P > < p > in China, we have truly realized the fast logistics and the fastest and most comprehensive service. This is much ahead of the United States and Western countries. It is very difficult for the United States to catch up. American companies begin to give up R & D: who should pay for corporate research?