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The function of the intermediary mode is to remove the coupling relationship between objects. After adding an intermediary object, all related objects communicate through the intermediary object instead of referencing each other. Therefore, when an object sends a change, only the intermediary object needs to be notified. Intermediaries loosely couple objects and can independently change their interaction.高大威大学肄业初入社会，谋得快递员一职，一次在孙凯瑞的激将下，赌输了客户夏雪的商品，从而被迫成为夏雪的免费员工，更是遭到消防队长-----夏雪的哥哥夏雨的蔑视。高大威特招进了消防队，被分配在搜救犬中队，而后与孙凯瑞、夏雨一起成为特勤尖刀队的“铁三角”。高大威误打误撞劝服轻生者，演习时更机智地救了被困孩童，成为特勤队的新星。在工厂救援中他的疏忽差点害死队友，在反思后快速成长，并开始尊重科学救援的理念。在后来的矿山救援中以命相抵生死救援，重新换得战友信任。特勤队经过一连串凶险的救援事件，新兵、老兵终于融为一体，队员之间建立了友情，高大威终于成长为消防精英。10-15% of aquatic plants and hidden objects are planted shallowly at the edge of the pond to create an environment for lobsters to inhabit and shell and reduce mutual killing. The influence of water quality on lobster yield cannot be ignored. During the breeding process, the PH value of the pool water is kept between 7.5 and 8.5, and the transparency is 30-40cm. Fresh water should be added frequently, quicklime solution should be splashed regularly, water quality should be adjusted, and diseases and shelling failure should be prevented. 2. Feed feed reasonably. Lobsters will kill each other when hungry and under-fed, so the feeding amount must be sufficient. Lobster feed is animal and plant feed. Plant feeds are wheat, aquatic plants, rapeseed cakes, etc. Animal feeds are miscellaneous fish, miscellaneous meat, livestock viscera, etc. At ordinary times, the feeding time, feeding amount and feeding method are determined according to the habit of lobsters falling in the day and coming out at night and the density of lobsters in the pond. 3. Scientific fishing. Young shrimps can grow to commercial specifications in 60-90 days under the condition of suitable temperature and sufficient feed. The seedlings will be released in March and will be caught in rotation around June, selling large ones and keeping small ones.一个关于一个女人在苏联集中营的第一夜的求生故事杂志翻开，一个跌宕起伏、波澜壮阔、神秘莫测的世界就此打开……————谢谢大家对《回家》的支持。同时感谢书友【雨中蔷薇之恋】的慷慨打赏