Most companies tend to recruit college students who have held positions at school, prompting many students to "promote" themselves when they are applying for jobs. The officer of the student union may be replaced by the chairman; Participants in social activities can be changed to organizers. Some businesses were surprised to find that on the resume they received, there were four school student union presidents at the same time, and no fewer than eight of the ministers. Now enterprises are also learning smart. You say you are the President of the student union, and the enterprise will secretly call the teachers and students of the school, whether it is true "li kui" or not. The stability and mobility of style is an important category of research style problem. The stability of style, or relative stability, refers to the main style characteristics of a writer once formed, which often runs through many stages and many aspects of the writer's creation. The stability of style is mostly related to the writer's character, disposition, temperament and so on. In addition, national style and ethnic tradition, especially national character, ethnic form, and national language, are often restricted by these factors, and are also important aspects of forming style stability. The change of style mainly refers to the development of style. The maturing of the writer's style, tend to have a development process, even if has formed its own unique style, it is not rigid, but reflect the difference of the object, when writing a specific objective environment and the subjective state of mind, also will be change, show stage. The marriage certificates of the children always mention the death or not of their parents. In the most recent civil status records, the date and place of death are even mentioned. Similarly, the death certificates of the children make it possible to know whether their parents were deceased or not, but without more precision. Mars, Incorporated is a worldwide manufacturer of confectionery, commercial dog food, along with other food products with $30 billion in annual sales in 2010 and was ranked because 5th largest private company in America 2009. Mars Incorporated gains 85 in 100 votes for satisfaction and becomes one of the most admired companies in America. Mars is well-known for its secrecy and excellency in training managers, even re-branding themselves. Furthermore, Mars is easily the most famous for the eponymous Mars bar, as well as other confectionery for example Milky Way, M&M's, Twix, Skittles and Snickers.