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Top 10 False News in 2016和东方不败一样的面容，但却截然不同的气质。　　田桂芳她阻止了很多事发生。诸如修直没有失踪、厨房胖嫂没被开水烫伤、莫菲（丽娜 饰）的裙子没有烧着……但门防大爷的伞还是散架了、园长的眼镜碎了……修直这样度过了幼儿园。The instructions used in Dockerfile were introduced in the previous article, and now we will begin to practice the instructions.Whether you are a new salesman or an old salesman, In the process of sales promotion, we must treat each customer with a sincere attitude, take the initiative to think of the customer, take the customer's needs as the focus of work, and we must do a good job in the whole process of pre-sale, in-sale and after-sale service, so that the customer can recognize your work and make friends with you, so that you will gradually grow from a new salesman to a successful salesman.The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From Baidu