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某猪群中保育阶段猪出现关节肿大，运动障碍，部分猪具有神经症状和呼吸道症状，腹式呼吸。急性死亡猪败血症。发病率在30％以上。 如在培养基中，加入脱纤绵羊血，副猪嗜血杆菌菌落周围出现下列特征
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We are looking for an individual who has ______ qualifications and knowledge of sales to take over Mr. Thompson"s position.
To: All staff members at the supervisory level or aboveFrom: General Affairs DepartmentDate: July 20Re: New Meeting Room ProtocolA number of complications have arisen ______ the use of this building"s meeting rooms. The old system involved informing the head secretary for the floor 30 minutes prior to a meeting in a given room, but this has not been working. This became most evident with last Friday"s fiasco (which I will not detail here).The new system will require employees to reserve a meeting room with my office ______ one full hour in advance. You may still submit your request with the head secretary of the floor, but such requests must be made the day before and are subject to modification. When reserving a meeting room, be sure to include an estimate of how long you need the room.Thirty-minute meetings to discuss this new system will be held Tuesday at 10:30 a.m.,1:30 p.m., and 3 p.m. in meeting room 5-A. This policy ______ into effect as of July 25.
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芳基烷酸类药物在临床中的作用是
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