Passenger car: in its design and technical features, it is mainly used to carry passengers and their carry-on luggage and (or) temporary items, including the driver's seat, not more than 9 seats. It can also draw a trailer. Classified into ordinary passenger cars, live senior passenger cars, passenger cars, small passenger car, convertible, warehouse back passenger car, station wagon, multipurpose passenger vehicles, short head special passenger cars, cross-country passenger cars and passenger cars, etc. 11 class. Because economists understand earnings as actual material wealth increase, accounting experts think the output value of more than the difference between the input value is profits, there is a contradiction and two kinds of income concept. The specific performance is: Understand different connotation of interest rates, will help us for the financial concepts of interest rates has a more deepen understanding, especially the formation, change and derivatives need to be determined by the market, this is a very key factor. In finance, investing means buying securities or other financial or paper assets. Valuation is a way to estimate the price of a potential investment. The types of investments include real estate, securities investment, gold, foreign currency, insurance or bonds or stamps. These investments may then provide future cash flows that may increase or decrease their value. The investment in the stock market is carried out by securities investors. Friends and colleagues gathered to applaud worthy winners across seven categories – and recognise the creativity and dedication which underpin the whole sector’s contribution to the economy, to society and to customers, staff and stakeholders.