is corporate social responsibility profitable for companies It is generally believed that the v-shaped engine is a relatively advanced engine, which also becomes a symbol of the sedan grade. At present, the most common engines are the straight-line 4 cylinder (L4) and v-type 6 cylinder (V6) engine. In general, the V6 engine has a higher displacement than L4, and the V6 engine runs smoothly and quietly than the L4 engine. A V6 engine is usually mounted on a mid-grade sedan. This approach periodically revised future plans based on the implementation of the plan and changes in the environment, and moved forward over the period to integrate short-term and medium-term plans organically. As it is difficult to accurately predict the future of the plan work affect organizational survival and the development of economy, politics, culture, technology, industry, customers and other factors change, and as the extension of planning period, the uncertainty is greater and greater. Therefore, the implementation of a planned implementation of a mechanical, or mechanical, and static execution of a strategic plan by a number of years ago may result in significant errors and losses. Rolling planning can avoid the consequences of this uncertainty. The specific approach is to make plans in a very short and thin way. In the early 20th century, famous American economist elvin fisher developed the theory of economic gain. In its book "the nature of capital and yield", first, the concept of yield is analyzed in terms of the performance of earnings, and three different types of benefits are proposed: The report said: “These pay penalties exist despite the Agency Worker Regulations 2010 which gives those with 12 weeks-plus of continuous service in the workplace pay parity with comparable employees.” Just as it's done traditionally, you are able to prepare printed Christmas lyrics sheets and hand them in the market to you and your guests. Then you are able to all go close to the piano to sing the songs individually. That is, obviously, if you have a piano. If not, then it is possible to undertake it inside most convenient and modern way, via your computer and PowerPoint. All you have to do is to download Christmas music online, specifically those karaoke audio files, and listen to it. With great stereo sounds along with a handful of microphones, you and your guests will certainly enjoy Christmas Eve. The market is the condition that Commodity Exchange is carried out smoothly, it is commodity circulation domain all Commodity Exchange activity total. The market system is made up of all kinds of professional market, such as goods and services market, financial market, labor market, technology market, information market, the real estate market, cultural market, a complete system of tourism market, etc. At the same time, each professional market in the market system has its special functions, which are interdependent and mutually restricted, and work together in the social economy.