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Circulatory systemMH-H18郑武已经屏住了呼吸。Avoid coupling the sender and receiver of the request, make it possible for multiple objects to receive the request, connect these objects into a chain, and pass the request along this chain until an object processes it. This is the responsibility chain mode. In the responsibility chain mode, it is possible for each object to process the request, thus realizing decoupling between the sender and receiver of the request. At the same time, the responsibility chain mode simplifies the structure of the object, which makes each object only need to refer to its successor without knowing the whole chain, thus improving the flexibility of the system and making it more convenient to add new request processing classes. However, we cannot guarantee that all requests can be processed in the responsibility chain, and it is not conducive to observing runtime characteristics.意大利电影《完美陌生人》的德国翻拍版。Xinjiang Uygur Autonomous Region他眼中闪着冷酷的光芒，出手狠辣，招招毙敌，护着秦淼往一旁杀去。