A、This influenza can cause death if not treated immediately.
B、The number of the influenza virus can grow very rapidly.
C、The people who got the disease recovered soon.
D、The London doctors did not take the virus seriously at first.
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试题解析
答案为B。根据第三段和第四段，They found that by reproducing itself at very high speed，the virus had multiplied more than a million times within two days．There experiments revealed that the new virus spread easily， but that it was not a killer 作出该项选择。其他选项与这两句矛盾。
