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2. Competition mode: Before the competition, each group of athletes has one leg tied together with cloth straps (tied above the ankle joint and the lower leg close to the knee joint, tied firmly), starting in a standing mode, after the whistle sounded, the three started at the same time,年初的《亲亲我好妈》由不被看好绝地反弹，不少网民大赞该剧内容够贴地，道尽一众港妈心声，而这套剧亦准备开拍续集啦。In the above code, we use three functions, order500, order200, orderNormal to handle its own business logic, If the current own function cannot handle things, We pass it to the following function to handle it. By analogy, Until there is a function that can handle him, Otherwise, the responsibility chain mode will leave the chain directly, telling that it cannot be processed and throwing an error prompt. Although the above code can be used as the responsibility chain mode, we can see from the above code that the Order500 function depends on functions such as Order200, so there must be this function, which also violates the open-closed principle in object-oriented. Let's continue to understand writing flexible and detachable responsibility chain nodes.加之本身就处在越国的统治之下，现在更是感恩戴德，归心忠诚。也许是刘邦和张良对尹旭有着足够的信心，第二日张良便会去向韩王成报到了。美国飞虎队员本尼达远赴中国帮助抵抗日军侵略。在一次空战中被日机击落身负重伤。日军为得到美军情报，在飞机失事地区展开疯狂搜捕。新四军第五师李师长接到美军救援指示，立即部署营救计划。在当地群众、游击队和新四军五师的联合营救下，艰难而又机智的突破了日军的一道道封锁线，最终将飞虎队员本尼达顺利转交到前来接应的部队手中。在展开营救的行动中，中国人民及新四军舍身忘死保护重伤在身的本尼达。由此主人会延续六十年的真挚友谊。六十年后，这群美国客人和中国主人一起在当年落下飞机的水塘边，照下了一张照片。