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Shandong ProvinceThe term "fire protection technical service practitioners" as mentioned in these Provisions, It refers to the professional and technical personnel who have obtained the qualification of registered fire engineers in accordance with the law and practiced in the fire technical service institutions, as well as the general operators who have obtained the professional qualification of the corresponding special types of work in the fire industry in accordance with the relevant provisions and are engaged in the maintenance and testing of fire facilities in the fire technical service institutions.　　该剧讲述了一个未来女神经历时空穿梭救赎自己以及所爱的人，和一群充满青春活力的学生在WJC精英学院发生的错综复杂的感人故事。DNS Query FloodFor codes of the same length, theoretically, the further the coding distance between any two categories, the stronger the error correction capability. Therefore, when the code length is small, the theoretical optimal code can be calculated according to this principle. However, it is difficult to effectively determine the optimal code when the code length is slightly larger. In fact, this is an NP-hard problem. However, we usually do not need to obtain theoretical optimal codes, because non-optimal codes can often produce good enough classifiers in practice. On the other hand, it is not that the better the theoretical properties of coding, the better the classification performance, because the machine learning problem involves many factors, such as dismantling multiple classes into two "class subsets", and the difficulty of distinguishing the two class subsets formed by different dismantling methods is often different, that is, the difficulty of the two classification problems caused by them is different. Therefore, one theory has a good quality of error correction, but it leads to a difficult coding for the two-classification problem, which is worse than the other theory, but it leads to a simpler coding for the two-classification problem, and it is hard to say which is better or weaker in the final performance of the model.