It can be inferred from the passage that all of the following are ways of producing new strains of

It can be inferred from the passage that all of the following are ways of producing new strains of influenza EXCEPT_______

A. two influenza viruses in the same animal recombining 

B. animal viruses recombining with human viruses

C. two animal viruses recombining 

D. two animal viruses recombining in a human 

Trả lời

Chọn D