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Can you guess where this passage is from
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某企业内第二分厂是利润中心，本期实现内部销售收入300万元，销售变动成本为180万元，该中心负责人可控固定成本为40万元，不可控但应由该中心负担的固定成本为20万元，那么该中心的部门经理边际贡献是( )万元。
A major reason for (21) in the animal world is territory. The male animal establishes an area. The size of the area is sufficient to provide food for him, his (22) and their offspring. Migrating birds, for example, (23) up the best territory in the order of "first come, first (24) . "The late arrivals may acquire larger territories, but less food is (25) , or they are too close to the (26) of the enemies of the species. (27) there is really insufficient food or the danger is very great, the animal will not mate. In this way, the members of the species which are less fit will not have (28) .When there is conflict (29) territory, animals will commonly use force, or (30) of force, to decide who will stay and who will go. It is interesting to note, however, that animals seem to use the (31) amount of force necessary to drive away the (32) There is usually no killing. In the case of those animals which are (33) of doing each other great harm, (here is a system for the (34) animal to show the winning animal that he wishes (35) When he shows this, the (36) normally stops fighting. Animals especially birds, which can easily escape from conflict seem to have no obstacle against killing, equally no mechanism (37) sub mission. The defeated bird simply flies away. However, if two doves are (38) in a cage, and they start fighting, they will continue to fight until one kills the other. We all think of the dove as a (39) of peace and, in its natural habitat, it is peaceful. But the" peace" mechanism does not (40) in a cage. 22().
该病治法为
若本病失治误治，出现腹大胀满，按之如囊裹水，胸腹胀满，得热稍舒，怯寒肢肿，小便短少，大便溏薄，舌苔白腻水滑，脉弦迟，则应选用
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