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Fire protection associations and fire protection technical service industry associations shall not engage in for-profit social fire protection technical service activities, nor shall they engage in or monopolize the industry through fire protection technical service institutions.In the system, the client often needs to interact with multiple subsystems, which causes the client to change with the change of subsystems. At this time, the appearance mode can be used to decouple the client from each subsystem. Appearance mode refers to providing a consistent facade for a group of interfaces in the subsystem. It provides a high-level interface that makes the subsystem easier to use. For example, the customer specialist of Telecom can let the customer specialist complete the services such as charging telephone charges and modifying packages without interacting with various subsystems by himself. The specific class structure diagram is as follows:我们关注两个不幸的、身亡的合同杀手的打击和（通常不是）失误，坦率地说，他们对自己比对任何人都更危险。每一集都会看到弗兰（苏·帕金斯饰）和杰米（梅尔·吉德罗伊饰）试图追踪并杀死不同的目标。但是每一次攻击都会变成一堆错误的身份、错误的进入时间和错误的武器。无论是在树林中失去目标，还是不确定他们应该杀死一对同卵双胞胎中的哪一个，事情都很少按计划进行。有一青梅竹马女子交好，名唤李玉娘，与跛足父亲经营一家客店。