What is not anabolic product of bacteria ()
A. endotoxin
B. exotoxin
C. anti-toxin
D. pigment
E. none of the above
查看答案
Which of the following can kill the spores ()
A. disinfection
B. antisepsis
C. asepsis
D. sterilization
E. none of the above
Genetic material of bacteria include()
A. nuclear and plasmid
B. nuclear, plasmid and mesosome
C. nuclear, plasmid and prophage
D. nuclear and prophage
E. none of the above
Incubation period of HIV infection is ()
A. a few days
B. a few weeks
C. a few months
D. a few years
E. none of the above
The important spikes of HIV are gp120 and ()
A. gp24
B. gp7
C. gp41
D. gp9
E. none of the above