According to the passage, scientists have discovered that influenza viruses ____

游客2024-06-30  9

问题 According to the passage, scientists have discovered that influenza viruses ______ . [br] It can be inferred from the passage that all of the following are with of producing new strains of influenza viruses except ______ .

选项 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

答案 D

解析
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