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有那空着急，不如好好练武是正经。When we chat with the purchasing company, we often pay great attention to the content of the conversation and always say that there is no topic. In fact, we should pay attention to the process and atmosphere of our conversation. If we had a pleasant and harmonious chat that day, our feelings would be very close. After many days, we often forget what we were talking about at that time, only remember when we had a good chat. In fact, the same is true for purchasing. We will give him a quotation for the price, we will give him a certificate of quality recognition for the quality, and we will stamp and sign it back to him at the delivery date. Therefore, we only need to talk about things other than business and the best questions that he is interested in.Wine tasting notes为了对付流氓他们可以比流氓更加的流氓，但是警察永远不会变成流氓！一个懦弱的小流氓因杀人没有证据而被释放，膨胀的虚荣心使他渐渐演变成无恶不作的大流氓；一个机智勇敢的刑警为找到证据不遗余力的对流氓穷追不舍，期间发生一连串出人意料、惊心动魄的警匪大战……4-3 Attack 1-2 4-3 Survive, but will become 4-2, thinking that the opponent's attack power is 1 point, so reduce a little health value, but the attack power will not decrease.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.牛虻一个为了自己的革命信仰，甘愿被命运折磨的人。他深爱过两个人--父亲蒙坦里尼和高洁的女人琼玛，但后来的他一生都没有再给机会让他们来爱他。他的内心承受了非人的炼狱般的折磨。他给我们留下的思索是：人到底该为什么活着……