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@ Lillian Lilian　　Sam Levinson执笔的《亢奋》讲述在一年前有名青少年在夜总会外 被谋杀，而悲剧发生一年后其他青少年同伴试图通过毒品﹑性爱和暴力来逃避现实，以应对无法确定的未来。Article 19 [Agencies] Medical security agencies shall abide by the following provisions:Big Brother Strong Invincible Ben Meng Xin Has Been Dizzy可是，他一生刚硬要强。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.NBC宣布一口气续订《#法律与秩序：特殊受害者# Law & Order: Special Victims Unit》三季（22-24）。