2. 外语
  3. A. incident B. when C. include D. flights E. informed F. carriages G. called H. s

A. incident B. when C. include D. flights E. informed F. carriages G. called H. s

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问题     A. incident        B. when          C. include        D. flights        E. informed
    F. carriages       G. called        H. serious        I. stressful      J. disaster
    K. command         L. reluctantly   M. confronted     N. require        O. easily
    As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded "Is there a doctor on board?" announcement. I’ve been【C1】________ only once—for a woman who had merely fainted. But the【C2】________ made me quite curious about how often this kind of thing happens. I wondered what I would do if【C3】________ with a real midair medical emergency—without access to a hospital staff and the usual emergency equipment. So【C4】________ the New England Journal of Medicine last week published a study about in-flight medical events, I read it with interest.
    The study estimated that there are an average of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not【C5】________; fainting and dizziness are the most frequent complaints.
    But 13% of them—roughly four a day—are serious enough to【C6】________ a pilot to change course.
    The most common of the serious emergencies【C7】________ heart trouble, strokes, and difficulty breathing.
    Let’s face it: plane rides are【C8】________. For starters, cabin pressures at high altitudes are set at roughly what they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty【C9】________, but passengers with heart disease may experience chest pains as result of the reduced amount of oxygen flowing through their blood. Another common inflight problem is deep venous thrombosis—the so-called economy class syndrome. Whatever happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation,【C10】________ with at least one attendant are starting to install emergency medical kits to treat heart attacks.
【C5】
选项
答案H
解析 空格前的are提示空格应填入分词或形容词。空格所在句的后一分句说“晕倒和眩晕是最常见的身体不适症状”，推测空格所在分句大意也应与后一分句相近。再结合下一句But引导的转折句“但是其中13％(大概每天4次)会严重到需要飞行员改变航线”，可推断大多数情况并不严重，故选H。
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