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【单选题】
Which of the following viruses has the largest genome in RNA viruses? ( )
A.
Influenza virus
B.
Measles virus
C.
Adenovirus
D.
Respiratory syncytial virus
E.
Novel coronavirus
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参考答案：
参考解析：
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举一反三
【多选题】Traditional vaccines include ()
A.
Live attenuated vaccine
B.
Subunit vaccine
C.
Inactivated vaccine
D.
Genetic engineering vaccine
E.
Nucleic acid vaccine
【单选题】Which of the following is not true regarding the clinical manifestations of COVID-19? ()
A.
Fever
B.
Dry cough
C.
Fatigue
D.
Dyspnea can occur in severely ill patients
E.
Most of the patients are accompanied by symptoms such as nasal congestion, runny nose, sore throat and diarrhea
【单选题】Which one of the following is incorrect regarding the clinical history of novel coronavirus infection? ()
A.
Relative symptoms are severe in children cases
B.
Mild cases may be free of pneumonia
C.
Most patients have a good prognosis
D.
A few patients are in critical condition
E.
The elderly and those with chronic basic diseases have poor prognosis
【单选题】For the general treatment of COVID-19, which of the following is incorrect? ()
A.
Supportive treatment
B.
Symptomatic treatment
C.
Oxygen therapy
D.
Antibacterial treatment
E.
Antiviral therapy
【多选题】For the treatment principles of severe and critical cases of COVID-19, which of the following are correct? ( )
A.
Based on symptomatic treatment
B.
Active prevention of complications
C.
Treatment of underlying diseases
D.
Prevent secondary infection
E.
Timely organ support
【单选题】In epidemiology of infectious diseases, incubation period refers to ().
A.
Time interval from pathogens invading human body to the earliest onset of clinical symptoms
B.
Recessive infection stage
C.
From invasion of human body to disappearance of clinical symptoms
D.
The first clinical symptoms onset in human body until the clinical symptoms disappear
E.
Asymptomatic infection stage
【多选题】The sources of infection of COVID-19 are ().
A.
patients infected with novel coronavirus
B.
bat carrying novel coronavirus
C.
Asymptomatic infection
D.
Wildlife
E.
poultry
【多选题】The three types of airborne transmission refer to ().
A.
droplet transmission
B.
aerosol transmission
C.
dust
D.
particles
E.
spores