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PS: Many forums have seen beginners ask whether WCF still needs to learn in depth, because they think these technologies may be outdated. Maybe Microsoft will launch a new SOA implementation scheme at that time. Wouldn't it be a waste of time to learn in depth, so they feel that there is no need to learn in depth and just know how to use them. I had the same feeling about this problem before, but now I think that although WCF technology may be replaced, the key to understanding a technology in depth is not to know some more advanced API calls, but to understand its implementation mechanism and way of thinking. Even if the latter technology is replaced, the mechanism behind it is definitely similar. Therefore, if you have a thorough understanding of a technology, you will feel familiar with the new technology and relaxed about it. In addition, after you have a thorough understanding of a technology, you dare to say that you have mastered the technology well during the interview, instead of saying that you use it a lot at ordinary times. Once you ask deeply, you do not know the implementation principle behind it. This is also why I want to write WCF series. I hope this opinion is helpful to some beginners.The picture shows the concept of cloud manufacturing and the process from traditional manufacturing to intelligent manufacturing, to intelligent manufacturing and to today's cloud manufacturing.2022年《家政女皇》将进行全新改版升级，节目内容将打造“大家政”概念，向衣、食、住、行、用等大生活范畴拓展，打造百姓“360°生活秒管家”，为观众提供全方位服务。However, crocodiles' short, rounded and sparsely arranged teeth do not have the function of cutting flesh. Their main function is to hook and inject the skin of prey during hunting to prevent prey from escaping. Land carnivores pay more attention to chewing, so they do not have such function.描写离婚与再婚、昨天与今天想要再一次得到幸福的男女之间故事的电视剧。　　Denis Leary饰演Sean Sr.，是这个关系紧密但失调的家庭的家长，随着所有人在芝加哥共度圣诞，各种秘密令到他的焦虑爆表。Elizabeth Perkins饰演女家长Ann。