题目内容

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

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

Which of the following statements is wrong about HAV virus? ()

A. +ssRNA virus
B. Can be cultivated in cell
C. Bing spread by the fecal-oral route
D. Never lead to chronic disease
E. anti-HAV IgG is the earliest diagnositic evidence

The main hiding site of HSV-1 is ()

A. labial skin
B. pharyngeal lymph node
C. spinal neural ganglia
D. trigeminal ganglion
E. none of above

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