most profitable legal practice areas Quality control indicators include: gasoline antiknock property (research octane number, motor octane number, antiknock index), sulfur content, vapor pressure, contents of olefins, aromatics, benzene content, corrosion, distillation range, etc. In January 2014, the national general motors (gm) IV standard was used. The state administration of quality supervision and inspection and the national standards commission issued the mandatory national standards for motor vehicles in phase V. The plan is to be implemented at the end of 2016. The sulfur content is the most critical environmental protection indicator in vehicle gasoline. In order to further reduce the emission of vehicle pollutants, the national V standard lowers the sulfur content limit from 50ppm in the fourth stage to 10ppm, which is 80% lower. Manganese has the potential risk to human health, and the vehicle emission control system will also have adverse effects. According to the principle of prevention, the limit value of the manganese content indicator is reduced from 8mg/L in the fourth stage to 2mg/L, which stipulates that no artificial addition is allowed. In order to further reduce the photochemical pollution caused by the evaporation of gasoline, and reduce the gas intake system of the automobile engine, the national five standard reduced the level of olefin from 28% to 24% in the fourth stage. Due to the decrease of octane number caused by the reduction of sulfur and manganese, the number of gasoline used in phase V was adjusted from 90, 93 and 97 to 89, 92 and 95 respectively. At the same time, considering the development trend of the automobile industry, the index requirements of motor gasoline are added in the standard appendices. Western economists further point out that the main factor that leads to the difference between trading costs in markets and businesses is the incompleteness of information. Because of the incompleteness of the information. Any party of a contract will be trying to collect, information and access to what they didn't have to monitor each other's behavior, and try to constraints, and afterwards to punish in advance of each other's default behavior and so on. All these practices produce transaction costs. As a result of these practices in the market and the enterprise can take different forms, so the corresponding transaction costs is not the same, in particular, under the condition of asymmetric information, in the process of market transactions, transaction cost, as a result of these practices are often very high. Therefore, through the organizational form of enterprises, some market transactions can be internalized to eliminate or reduce the high transaction costs generated by some market exchanges. It eventually admitted that the app had broken down, but that it had been selling at 17 pounds at the station. However, when I got the reply, I had already paid the extra fee before the early discount ended. According to the engine displacement, divided into a miniature (1 liter), light level sedan (1-1.6 liters), intermediate (1.6-2.5 litres), senior sedan (2.5 4 liters), limousine (4 liters). The response to the value of diversity is intellectual. Intellectual (including concept and image) is higher animals of conditioned reflex formed on the basis of more common, more abstract conditioned reflex, it is produced by the external and internal relations of things contact of abstract understanding. Among them, the abstract cognition of the internal relation of things forms the concept, and the abstract understanding of the external relations of things forms an image. Concept and image is what you have done to learn something from the induction and summary, make the person's behavior pattern has a more systemic and purpose, make people not only can adapt to the complex survival environment, but also the initiative to choose the environment. Due to the learning of thinking and behavior patterns are often fragmentary, irregular and blind, people often "learning, and I don't know why," can't consciously use, only after forming concept and image, will be to sort out a "main line", and according to the logic of determined by the "mainline" direction will learn things lined up. Through the abstract and image, the person can be either things to take the same responses to different stimuli, can also take different responses of the same stimulus thing, make the person's reaction mode diversification, flexible and purpose. For example, there are also harmful substances, which can be used in various ways, such as evasion, attack or protection, depending on the situation. Anyway, intellectual is very higher organisms (such as monkeys and apes) outside of the value of diversity things very advanced way of ordering reac We should improve the market supervision system of administrative law enforcement, industry self-discipline, public opinion supervision and mass participation.