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【单选题】
钩端螺旋体主要的传染源和储存宿主是?A.
选择1病人、节肢动物
B.
选择2猪、鼠
C.
选择3猪、节肢动物
D.
选择4病人、犬
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举一反三
【判断题】It has been found to be at least a partial constituent in over 90 per cent of all chemicals known to man.
A.
正确
B.
错误
【判断题】It has been suggested that automation becomes economically viable only when a facility handles at least 50,000 cartons a day.
A.
正确
B.
错误
【简答题】其一,主张以政治行为和行为互动作为()
【简答题】It has been _______ (翻译) into at least 125 languages.
【简答题】A powerful earthquake in northern Japan has killed at least six people and injured more than 100. Power has been cut to many homes and businesses, but for now, officials say two major nuclear power 1 ...
【单选题】某企业精心服务与市场的某些细小分布而不是与主要企业竞争只是通过专业化经营占据有利的市场位置,该企业被看做
A.
市场主导者
B.
市场追随者
C.
市场挑战者
D.
市场补缺者
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