The purchase of US Treasury bonds has risen to the national level. Why use the national foreign exchange reserves at home? Is it not good to use RMB at home? Moreover, part of the foreign exchange reserves of the state is no different from part of the RMB, and it is not an individual. When we invest such a large sum of money there, we should consider how to get a good deal. Anyway, the loss is nobody's. Buying US Treasury bonds is based on economic efficiency. Two years ago, Huijin was also designated to buy foreign securities, which was a terrible loss. Other countries, except the United States, can spend dollars everywhere because of American economic hegemony.