operating profit before interest and tax According to the latest standard GB/T 3730.1-2001, cars are mainly divided into passenger cars and commercial vehicles. The market is the economic contact method which is the basic content of Commodity Exchange. Under the condition of commodity economy, the premise of exchange generation and existence is social division of labor and commodity production. Because of the social division of labor, the different producers, respectively, engaged in the production of different products, did not meet the needs of themselves and others and exchange their respective product, so that the general labor products into commodities, make the product production is transformed into commodity production. It is under this condition that the market for goods to be exchanged to meet the needs of different producers is born. Therefore, the market is the product of the division of labor and the exchange of goods under the conditions of commodity economy. The market and commodity economy have inalienable internal relation. Earlier this year, the average five-year Treasury note paid 1.67 percentage points, compared with 2.02 percent today. Investment refers to the specific economic subject in order to reap the benefits in the foreseeable future period or capital appreciation, within a certain period of a certain subject matter in the field of putting enough amount of money or currency equivalent physical economic behavior. It can be divided into physical investment, capital investment and securities investment. The former is to put money into the enterprise, make a certain profit through production and operation. The latter is to purchase the shares and corporate bonds issued by the enterprise and indirectly participate in the profit distribution of the enterprises. Securities investment analysis method mainly has the following three: analysis of fundamental analysis, technical analysis, evolution, in which the fundamental analysis is mainly used in the choice of investment subject matter, technical analysis and evolution analysis is mainly used in the specific investment operation on the judgment of time and space, as a useful supplement to improve effectiveness and reliability of investment analysis. Powerful and smart key logger software programs are safe, reliable and value effective application which quickly monitors all unauthorized/external users’ activities and generates report in encrypted log files that may be sent at pre defined email address or upload at html page using FTP server setting. Key logger software is suitable for different version of Windows systems including Windows XP, Windows Vista, Windows 2000, and Windows 7 etc for monitoring internet activity details performed on your own laptop.