【单选题】某饲养场14头架子猪中有4头发病,病猪以咳嗽、消瘦、下痢为主,曾肌内注射痢菌净、乳酸环丙沙星、青霉素等药物治疗,未见效果,到8月4日全群发病,1头死亡,有的食欲废绝。病猪营养不良,消瘦,生长发育不良,被毛粗乱、无光泽,有的下痢,粪内混有血液。体温无明显变化。询问该猪群已接种了猪三联苗、口蹄疫苗,饲料为麸皮、麦秆粉、鲜甜菜叶,无中毒史如检查发现肠管壁增厚,小肠内有淡黄白色虫体,呈圆柱形,一端较圆,另...
【单选题】What may be the secret of Jim Smiley ’ s horse winning a competition?
A.
The horse was very strong and powerful.
B.
The horse was good at competing skills to save her power at the beginning.
C.
The horse was always crazy and she rushed all the way along.
D.
The horse was well-trained.
【单选题】斜滑块侧向分型与抽芯机构设计时,斜滑块推出行程在卧式模具中一般是斜滑块高度的 。
【单选题】What ’ s the winning strategy when playing the computer game?
A.
Check constantly the lesser doors before they vanished.
B.
Cling to the doors to keep future options open.
C.
Check all the doors and keep clicking on the vanishing doors.
D.
Check all the doors and keep clicking on the one with the highest cash.
【单选题】焦耳实验表明:无化学变化、无相变化,W’=0的理想气体,其热力学能与( )有关
【单选题】某猪场幼猪,3月龄,先排软粪,渐变为黄色稀粪,内混黏液或带血,严重时所排粪便呈红色糊状,内有大量黏液、血块及脓性分泌物,有的排灰色、褐色甚至绿色糊状粪,有时带有很多小气泡,并混有黏液及纤维素伪膜。大部分病猪体温正常。用硫酸新霉素混饲3d,疗效差,经实验室确诊为猪痢疾密螺旋体引起的感染,应改用的治疗药物是()
【单选题】某饲养场14头架子猪中有4头发病,病猪以咳嗽、消瘦、下痢为主,曾肌内注射痢菌净、乳酸环丙沙星、青霉素等药物治疗,未见效果,到8月4日全群发病,1头死亡,有的食欲废绝。病猪营养不良,消瘦,生长发育不良,被毛粗乱、无光泽,有的下痢,粪内混有血液。体温无明显变化。询问该猪群已接种了猪三联苗、口蹄疫苗,饲料为麸皮、麦秆粉、鲜甜菜叶,无中毒史对该群猪病的诊断首先需进行的检查是()
【单选题】在斜滑块侧向分型与抽芯机构中,斜滑块导滑部分加工相对简单的是 形式。
【简答题】What factor(s) is(are) considered the decisive in Americans winning the War of Independence?
【单选题】2004年7月28日,青海省西沟乡麻地沟村袁某饲养的14头架子猪中有4头发病,病猪以咳嗽,消瘦,下痢为主,曾用肌注痢菌净,乳酸环丙沙星,青霉素等药物治疗,未见效果,到8月4日全群发病,1头死亡,有的食欲废绝,邀诊。病猪营养不良,消瘦,生长发育不良,被毛粗乱无光泽,有的下痢,粪内混有血液。体温无明显变化。询问该猪群已接种了猪三联苗,口蹄疫苗,饲料为麸皮。麦秆粉,鲜甜菜叶,无中毒史。对该群猪病的诊断首...