题目内容

which is not the steps of virus replication?()

A. attachment
B. penetration
C. uncoating
D. binary fission
E. release

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which one is the most important maker of HBV infection?()

A. HBsAg
B. HBsAb
C. HBcAb
D. HBeAb
E. HbeAg

Which one of following is most accurate?()

A. HCV is transmitted through blood,but HDV not
Both HBV and HCV can establish a chronic carrier state
C. There is an effective vaccine against HCV but not against HDV
D. Both HCV and HDV are defective virus
E. Both HCV and HDV can be cultured artifially

which virus often cause ARDS (acute respiratory distress syndrome )?()

A. Rubella virus
B. Measles virus
C. HIV
D. rhinoviruses
E. SARS Coronavirus

The complication of child epidemic parotitis() is()

A. dementia
B. cardiac disease
C. hepatitis
D. orchitis or oaritis
E. nephritis

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