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【单选题】
下列尿培养结果,哪诊断尿道感染有意义A.
每毫升尿含大肠埃希菌量为 10000以上
B.
每毫升尿含大肠埃希菌量为 100000 以上
C.
每毫升尿含大肠埃希菌量为 1000 以上
D.
每毫升尿含大肠埃希菌量为 5000 以上
E.
尿液培养无菌生长
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【单选题】Because agriculture is so important to a nation's well-being, governments have always been concerned with it. For example, the United States and Canada have long produced surpluses that complicate the...
A.
they throw the country into great disorder
B.
they entail more expenditure on the part of the government
C.
they usually involve direct governmental support price
D.
the government has to set up special pricing systems
【单选题】Farmers have always had a particular interest in the weather, because it ( ) their work.
A.
accelerates
B.
effects
C.
affects
D.
exerts
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