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案例: 某猪场在开春时节,20日仔猪先后出现精神沉郁,食欲减退,喜卧,生长缓。临床检查可见,被粗乱,可视黏膜苍白,心跳加快,伴有消化机能障碍,出现交替性腹泻和便秘。请拟订治疗用药方案。 提示: 1、依据临床症状及仔猪发病的时间,可诊断为缺铁性贫血。 2、该病治疗原则为:幼畜补充铁剂,同时补充维生素B12,并适当健胃。 3、查看课本及查阅资料,列出具有抗贫血作用的药物。
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【单选题】根据下面材料，回答题。 U.S. to Start $3.2 Billion Chiltd Health Study in January A study that will cost $3.2 billion and last more than two decades to track the health of100,000 U.S. children from before birth t...
A.
conduct research
B.
track public health
C.
pr or treat illness
D.
speed up development
【简答题】Given that all countries other than the U.S. have universal health care systems in place, this may invite questions on why the U.S. remains the only wealthy, industrialized country without such a syst...
【简答题】Lee Humberg, district manager for the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service, is the man in charge of figuring out how to remove the flocks (群) of 15,000 to 20,000...
【单选题】Canadian health-care systems are different from those of the U.S. in that______.
A.
the federal government is directly responsible for them
B.
private sectors in Canada play a more important role
C.
the government only indirectly supports the employment-based plans
D.
the trade unions in both countries are only moderately powerful in such matters
【单选题】根据以下材料，回答题 U.S. to Start $3.2 Billion Child Health Study in January A study that will cost $3.2 billion and last more than two decades to track the health of 100，000 U.S. children from before birth to...
A.
conduct research
B.
track public health
C.
pr or treat illness
D.
speed up development
【单选题】设，则根据定积分的几何意义可知下列结论正确的是
A.
I是由曲线y=f(x)及直线x=a、x=b与x轴所围图形的面积，所以I＞0．
B.
若I=0，则上述图形面积为零，从而图形的“高”f(x)=0．
C.
I是曲线y=f(x)及直线x=a、x=b与x轴之间各部分而积的代数和．
D.
I是曲线y=
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