2. 职称英语
  3. According to the passage, scientists have discovered that influenza viruses ____

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

游客2023-09-28  51
问题 According to the passage, scientists have discovered that influenza viruses ______. [br] According to the passage a great variety of influenza can appear when ______.
选项 A、H and N spikes are produced
B、animal and bird viruses are combined
C、dissimilar types of viruses recombine
D、two viruses of the same type are contracted
答案 C
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3053639.html
相关试题推荐
随机试题
最新回复(0)