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(two) no longer meet the qualification conditions, after being ordered to make corrections within a time limit did not make corrections or continue to engage in the corresponding social fire technical service activities during the correction period;刘邦当即笑道：樊哙啊，你说的不错，要是能有人带来出巴蜀自然该册封为大元帅，这样自然是两全其美。Punishment-related Answering SkillsVisitor pattern decouples the data structure from the operations acting on the structure, making the operation set relatively free to evolve. Visitor pattern is suitable for systems with relatively stable data structure and easy change of algorithm. Because visitor mode makes it easy to increase algorithm operation. If system data structure objects are easy to change and new data objects are often added, visitor mode is not suitable. The advantage of visitor mode is that it is easy to add operations, because adding operations means adding new visitors. Visitor mode centralizes the relevant behaviors into one visitor object, and its changes do not affect the system data structure. Its disadvantage is that it is difficult to add new data structures. -From Encyclopedia