The issue of food security has become a focus of concern for our government and society. From an international background, affected by the US subprime crisis and other factors, asset prices, represented by stocks and real estate, have fallen rapidly around the world. The decline in the real estate market and the huge scale of hot money worldwide have shifted speculative focus to oil and food, which has led to the continuous rise in the prices of two commodities that affect human clothing, food, shelter, and transportation. From the domestic perspective, after the summer grain harvest in China this year, food prices continue Hovering at low prices, the price difference with the international market has increased. At the same time, the prices of vegetables, pork and many materials in China have been rising, but only the price of food has not risen significantly. Once China's existing food price system is "lost". it Will directly affect the normal operation of our economy and social stability. What is not in line with this text? ["Grain spreads and their expansion in domestic and foreign markets are a potential factor affecting China's food security.", 'US "subprime" crisis poses a threat to China\'s food security.', "International hot money peeping at China's food market will pose severe challenges to China's food security.", 'Increasing domestic food prices and reducing domestic and international price gaps are important strategies for China to cope with the global food crisis.']