displacement The investment of securities provides an important means for the central bank to conduct financial macro-control, which is of great significance to the sustainable and efficient development of the national economy. For these factors, numerous learning and teaching possibilities are formed and they are meant to learn mutually the preschool children and parent regarding EQ. This type of preschooler activities won't only support the preschooler, but sometimes result within a children developing long-term benefits. The specific activities may differ, but below are a few illustrations that might assist to encourage the next step of EQ both in the kids and parent: Leakage may occur at the interface of the gasoline pipe, which leads to the use of the air conditioning system into the vehicle. If the owner found the car fumes, deal with gasoline pipeline - open interface to check engine hatch, it is easy to discern does the interface of gas leakage, for a period of time after the leakage surface will appear a layer of oil sludge. If the leakage of the gasoline pipe is found, the interface should be tightened or repaired. On the other hand, if investors think that inflation will worsen or worsen, interest rates may rise to curb inflation, and bond prices will fall. First half of the 1980 s, the United States there is a lot of huge budget deficit and trade deficit, the dollar remains strong, is the United States adopted a policy of high interest rates, which makes a lot of capital from Japan and Western Europe into the results of the United States. The trend of the dollar has been greatly influenced by interest rate factors. Interest rate decision theory Frances O 'grady, chief secretary of the UK federation of industry and industry, said: "this suggests that brexit uncertainty has damaged the household budget. Work and living standards must be a priority in determining the best choice for brexit. The government should maintain a single market membership at the negotiating table. "