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IGMP means Internet Group Management Protocol. This protocol is used to establish and maintain multicast group membership between IP host and its directly adjacent multicast routers, but does not include the dissemination and maintenance of group membership information between multicast routers. This part of the work is completed by each group of broadcast routing protocols. All hosts participating in multicast must implement IGMP.Zhang Jie, born on December 20, 1982 in Chengdu, Sichuan, graduated from Sichuan Normal University, is a mainland pop male singer and founder of the music brand "Planet Culture".When a child has no experience and related concepts of things, there is no way to classify them effectively. The same is true of adults. Therefore, classification ability involves experience and knowledge, and involves conceptual ability.故事讲述的是公立高中的一年级生绫崎飒，因其父母性格懒散，使得他不得不每天都打工养家。圣诞夜，回到家中的绫崎飒发现父母留给他一张白条，原来，父母欠下了一亿五千万日圆债务后逃之夭夭。为了还债甚至还企图贩卖绫崎飒的器官。被黑道追杀走投无路的绫崎飒，妄图绑架附近公园的少女换取赎金，却阴差阳错的在层层误会之下，绫崎飒反倒成了少女的救命恩人。原来这位少女正是三千院财阀大小姐，为了报答救命之恩她雇用了绫崎飒当管家，并且偿还了他的债务。但是好人绫崎飒却坚持要偿还这笔钱，于是，绫崎飒的管家生活就此开始……当失去开刀动力的女外科医师，为了逃避黑暗的过去到乡下任职，在急诊室见识到各式奇特的动物伤害。从猪公压伤到企鹅咬伤，甚至虎鲸跟鰛鱼也出现在加害者名单上面。女医师也体会到了城乡医獠差距的无奈，在医短缺的环境下，病人被现实挤压的现实挣扎。