There are many types of plans that can be classified according to different criteria. The main classification criteria are: importance of plan, time limit, clarity and abstraction. However, according to these classification criteria, the type of plan obtained is not independent of each other, but is closely related. For example, short - term and long-term plans, strategic plans and job plans, etc. (2) passenger car: a rectangular carriage, which is mainly used for vehicles carrying personnel (more than 9 persons) and their carry-on items He said in the earnings call, the result of "shows the Micron company continued strong executive ability, market environment reflects the strategic importance of memory and flash memory storage, as well as the fundamentals of supply and demand state of health." Angelina Jolie can be an American talented actress cum director. She has received an Academy Award, two Screen Actors Guild Awards, and three Golden Globe Awards. Jolie has produced her name as an actress who are able to easily handle action, drama as well as directing. She wrote and directed the upcoming film "In the Land of Blood and Honey", a romance set from the backdrop from the Bosnian War. The two big-budget 2010 action movies, "Salt" that has been originally written for Tom Cruise, brought in $300 million with limited funds of $110 million and "The Tourist" earned 75% of its $280 million overseas market. First of all, it costs transaction cost for the manufacturer to purchase intermediate products in the market. It includes the cost of seeking suitable suppliers, signing contracts and supervising contract execution. If the manufacturer can produce some intermediate products within the enterprise itself, it can eliminate or reduce some transaction costs, and can better guarantee the quality of the products. Second, if the manufacturers need is a special type of specialized equipment, the supplier does not generally willing to specialize in only a buyer of the product of the investment and production, because this kind of proprietary investment risk is bigger. Therefore, vendors that need this specialized device need to solve the problem of specialized devices within the enterprise. In the end, the manufacturers hire employees with specialized skills, such as specialized product design, cost management, and quality control, and establish long-term contractual relationships with them. This can be more beneficial than buying the corresponding services from other vendors, thereby eliminating or reducing the corresponding transaction costs. As the dental industry is rapidly expanding, the requirement of dentists and staffs has risen tremendously. A dental clinic needs to consider employing more and more candidates to own top quality and efficient patient care. Apart from patient care, there are lots of other needs that have to be handled with professionalism, trust , care. It is because of this belief that some of the most efficient and experienced staffs including dentists are expected in the industry. However, occasionally, the need for extra dentists could be short-term. On the other hand, some dental practices may additionally require a temporary dentist to meet the duties of another.