2. 外语
  3. Influenza has been with us a long time. According to some Greek writers【C1】______medical history, the outbreak of 412 B. C. was

Influenza has been with us a long time. According to some Greek writers【C1】______medical history, the outbreak of 412 B. C. was

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问题     Influenza has been with us a long time. According to some Greek writers【C1】______medical history, the outbreak of 412 B. C. was of influenza. The same has been suggested of the sickness 【C2】______swept through the Greek army attacking Syracuse in 395 B. C. Flu is a disease that moves most quickly among people living in【C3】______conditions, hence, it is likely to attack armies.
    【C4】______the nineteenth century there were five widespread outbreaks of influenza. The last of the five【C5】______in 1889 and marked the beginning of the story of influenza in our time. 【C6】______the recent outbreak, it started in Asia.
    For more than forty years before that outbreak, influenza had steadily【C7】______and was believed to be dying out. A new group of outbreaks was【C8】______by the great outbreak of 1889-1890 and for the next quarter of a century influenza remains a constant threat.
    In April 918 flu broke among American troops stationed in France. It quickly spread through all the【C9】______but caused relatively few deaths. Four months later, however, a second outbreak started which【C10】______to be a killer. It killed not only the old and already sick but also healthy young adults. It went through every country in the world. It brought the life of whole countries to stop, food supplies stopped and work loss was very great. It is thus clear that influenza is a terrible infection that we have to pay more attention to.
【C1】
选项 A、on
B、by
C、to
D、with
答案A
解析 这里考查的是词汇。句意：根据一些——病史的希腊作家，公元前412年爆发了流行性感冒。关于什么方面的用“on”，因此选A。
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