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【单选题】
对嗜肺军团菌的错误描述是( )
A.
广泛存在于各种水环境中
B.
可寄生在单核吞噬细胞内
C.
是引起医源性肺炎的常见病原
D.
治疗首选红霉素
E.
感染后可产生保护性抗体,细胞免疫无保护作用
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A.
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B.
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【单选题】室温下下列物质分别与硝酸银溶液作用,能立即产生白色沉淀的是( )
A.
ArCH2 Cl
B.
ArCH, CI2 Cl
C.
H2C-CHCl
D.
ArCl
【单选题】室温下下列物质分别与硝酸银溶液作用,能立即产生白色沉淀的是
A.
ArCH 2 Cl
B.
ArCH 2 CH 2 Cl
C.
H 2 C=CHCl
D.
ArCl
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