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【单选题】
某新建猪场猪饲养密度较大,09年2月份陆续发现断乳后的架子猪和后备猪发病,病猪体温正常,精神不振,张口喘气,腹式呼吸,次数增多,有的呈犬坐姿势,严重的出现死亡。病程稍长的,采食正常,但食后咳嗽,严重时出现连续性咳嗽,咳嗽时站立不动拱背,后期采食下降,偶尔出现死亡。常用的治疗药物是A.
磺胺药
B.
青霉素
C.
恩诺沙星
D.
菌索
E.
庆大霉素
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【单选题】The underlined phrase 'cyclists' failure to keep up with the desired speed of motor traffic' in the second paragraph means______.
A.
cyclists' speed is beyond the limit
B.
cyclists' speed is much lower than that of motorists' and they easily get hurt
C.
cyclists often compete with motorists on the roads
D.
motorists usually took down upon cyclists.
【单选题】What can be a possible result of sleepiness?
A.
Industrial development will be slow.
B.
Traffic accidents.
C.
People will get fired from work.
D.
Heart disease.
【单选题】Traffic restrictions have come into effect in Beijing to improve the capital’s air quality and traffic situation for the 2008 Olympics．
A.
in order that
B.
in an attempt
C.
at an attempt
D.
in a try
【简答题】流行性乙型脑炎流行于冬春季。()
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