题目内容

Which body site has no normal flora? ()

A. skin
B. nasopharynx
C. genitalia
D. Intestine
E. blood

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Which bacteria is able to ferment lactose slowly? ()

A. Shigella dysenteriae
B. Shigella sonnei
C. Shigella boydii
D. Shigella flexneri
E. mutation of shigella flexneri

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Clostridum belong to ()

A. gram-negative cocci
B. gram-positive cocci
C. gram-positive bacilli, no spore forming;
D. gram positive bacilli,spore forming
E. gram negative bacilli,spore forming

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Which type of nucleic acid can act as mRNA and code for all the protein required during replication? ()

A. dsDNA
B. dsRNA
C. –ssRNA
D. +ssRNA
E. ssDNA

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Which of the following is found within the nuclei of infected hepatocytes and not usually in the peripheral circulation? () A

A. HbsAg
B. HbcAg
C. anti-HBc
D. HbeAb

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Which body site has no normal flora? ()

A. skin B. nasopharynx C. genitalia D. Intestine E. blood

Which bacteria is able to ferment lactose slowly? ()

Clostridum belong to ()

Which type of nucleic acid can act as mRNA and code for all the protein required during replication? ()

Which of the following is found within the nuclei of infected hepatocytes and not usually in the peripheral circulation? () A

A. skin
B. nasopharynx
C. genitalia
D. Intestine
E. blood