Acquired immunodeficiency syndrome is caused by ()
A. HTLV-Ⅰ
B. CMV
C. RSV
D. HIV-Ⅰ
E. HTLV-Ⅱ
查看答案
Which one below would be responsible for hydrophobia? ()
A. Epidemic encephalitis virus
B. Rabies virus
C. Hantavirus
Dengue virus
E. Flavivirus
Bacteriophage have common properties except ()
A. parasite in living bacteria
B. DNA or RNA
C. widespread existence
D. high host-specific parasitism
E. less resistive than bacteria
The streptococci classification basis is ()
A. ability to produce coagulase
B. the difference of pigment
C. the difference of flagella antigen
D. ability to hemolyse RBC on the blood agar plate
E. transmission route
The most potent toxin known in nature is ()
A. Plague toxin
B. Anthrax toxin
C. lecithinase
D. botulinum toxin
E. tetanospasmin
微信支付 
支付宝支付