The first is IQ advantage. I have to say that studying in the United States will make me feel something when I go to the United States. The IQ of Americans is indeed much worse than that of Asians, especially in China. People in China react much faster in logical reasoning, that is, mathematics, than people in other countries.

Secondly, China people study in their own country. Mathematics is much more difficult than them. This is much more difficult, not at all. There are many things in American mathematics that are nothing to China students. . . Although the curriculum in the United States is the same as that in China. For example, everyone in high school will learn calculus, but their topic is the most basic operation topic in the book. China's problem of beating around the bush is probably beyond their teacher's ability. Therefore, China people get more exercise in mathematics from childhood than they do.