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(four) the operator has obtained the professional qualification certificate for firefighters of buildings (structures) above the intermediate skill level, of which at least 30% are above the advanced skill level;本剧改编自Kate Atkinson在2013年获得科斯塔奖的同名小说。可他死活不说，总说他会给张家一个交代的。L与基拉——夜神月的展开了正面交锋。这时，泰国的一个小村庄被人从大地上抹去了痕迹。L并不知道有一桩足以毁灭世界的重大阴谋正在酝酿之中。苏岸待看清楚之后，嘴角lù出几分笑意，颇为〖兴〗奋，高声喊道：大王，是高易和陆明他们……两年之前，尹旭被楚怀王熊心册封为绍、兴侯之后，获封山yīn食邑七万户。We can see the above code; Player-to-player coupling code has been removed, However, all logical operations are put into the intermediary object for processing. Any operation of a certain player does not need to traverse to notify other players, but only needs to send a message to the intermediary. The intermediary processes the message after receiving it, and after processing the message, the processing result will be fed back to other player objects. The intermediary mode is used to remove the coupling code between objects. Make the program more flexible.Mediator mediator = new MyMediator ();