It can be inferred from the passage that all of the following are ways 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
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正确答案
试题解析
[解析] 见第三段,根据句意可知选项D为正确答案。