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Deliberate practice includes well-defined specific goals and usually includes some aspects of goal performance. It does not point to some vague overall improvement.很多人看到岳灵珊临死的那个片刻，都不禁泪流满面，为岳灵珊而惋惜。Mild anemia has clear causes and good therapeutic effect.龙阳君算一个，尉缭算是一个，不知道下一个又会是何方高人？其实关于君上的事情，尹旭本来完全可以问李玉娘。玄武王原谅胡家，那是看在胡将军的面子上，与此无涉。In real life, China's income tax is divided into enterprise income tax, foreign-invested enterprises or foreign-invested enterprises income tax and personal income tax. For these three types of income tax, each is calculated in a different way. Personal income tax has a personal income tax calculation method, while enterprise income tax has its corresponding calculation method. If we do not adopt the policy mode to realize such a requirement, we will define an income tax class, which has an attribute to identify the type of income tax and a CalculateTax () method to calculate the tax. In this method, we need to judge the tax type and calculate the income tax for different tax types through if-else statements. Such an implementation can indeed solve this scenario, but such a design is not conducive to expansion. If the system needs to add an income tax in the later period, it has to go back and modify the CalculateTax method to add an additional judgment statement, which clearly violates the principle of "open-closed". At this time, we can consider using the strategic mode to solve this problem. Since the tax method is the changing part of this scenario, we can naturally think of abstracting the tax method at this time, which is also the essence of the implementation of the strategic mode.　　影片讲述高家台村新上任的支部书记韩明军，借助国家推动黄河滩区脱贫迁建工作的东风，克服重重困难，完成房台加固、改变村民思想、走上产业振兴之路的故事。