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This paper summarizes the working principle, structure, specifications and models of time, and other related knowledge to help you understand the relevant contents of time relay more comprehensively.. . .The losers of team a and team b and team c after the break of the match城市突然出现火怪，普通职员大石头因此而失业，沮丧的他只好每天跟好朋友一起送快递，有一天竟然意外用朋友发明的饮料消灭了火怪，为了拯救家人和城市，他们化身饮料超人，成了对付火怪的超级英雄。The combination mode is also called part-to-whole mode. The combination mode combines objects into a tree structure, which is used to represent the relationship between the whole and the part. The combination mode enables clients to treat individual objects and combined objects equally. For example, in. NET, simple controls such as WinForm controls, TextBox and Label inherit from the Control class, while composite controls such as GroupBox also inherit from the Control class. The specific structure diagram of the combination mode is shown below.烈火丽人