It can be inferred from the passage that all of the following are ways of producing new strains of influenza viruses EXCEPT _____.
举一反三
- It can be inferred from the passage that all of the following are with of producing new strains of influenza viruses except ______ . A: two influenza viruses in the same animal recombining B: animal viruses recombining with human viruses C: two animal viruses recombining in one animal D: two animal viruses recombining in a human
- According to the passage, a great variety of influenza strains can appear when_____.
- As influenza is caused by a variety of species and strains of viruses, in any given year some strains can die out while others create (1), while yet another strain can cause a (2).
- Choose the best answer for each of the following questions It can be inferred from the passage that.
- It can be inferred from the passage that _____.