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    Cloze 26
   
    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 71 only once – for a woman who had
   
    merely fainted. But the 72 made me quite curious about how 73 this kind of thing happens I wondered what I would do if 74 with a real midair medical emergency-with out access 75 a hospital staff and the usual emergency equipment. So 76 the New England Journal of Medicine last week 77 a study about in –flight medical events. I read it 78 interest.
   
    The study estimated that there are a(n) 79 of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not 80;fainting and dizziness are the most frequent complaints. 81 13% of them –roughly four a day – are serious enough to 82 a pilot to change course. The most common of the serious emergencies 83 heart trouble. strokes, and difficulty breathing.
   
    Let’s face it: plane rides are 84.For starters, cabin pressures at high altitudes are set at roughly 85 they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty 86 ,but passengers with heart disease 87 experience chest pains as result of the reduced amount of oxygen flowing through their blood. 88 common in-flight problem is deep venous thrombosis – the so-called economy class syndrome (综合症).89 happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation, flights with at 90 one attendant are starting to install emergency medical kits to treat heart attacks.
   
    71 A)called      C)Informed      B)addressed      D)surveyed
   
    72 A)Accident      C)incident       B)condition      D)disaster
   
    73 A)soon      C)many       B)long      D)often
   
    74 A)confronted     C)identified       B)treated      D)provided
   
    75 A)for      C)by       B)to      D)through
   
    76 A)before      C)when      B)since      D)while
   
    77 A)collected      C)discovered      B)conducted      D)published
   
    78 A)by      C)with　      B)of      D)in
   
    79 A)amount      C)sum      B)average      D)number
   
    80 A)significant     C)common      B)heavy      D)serious
   
    81 A)For      C)But      B)On      D)So
   
    82 A)require      C)engage      B)inspire      D)command
   
    83 A)include      C)imply      B)confine      D)contain
   
    84 A)enjoyable     C)tedious      B)stimulating      D)stressful
   
    85 A)who      C)which      B)what      D)that
   
    86 A)harshly      C)easily      B)reluctantly      D)casually
   
    87 A)ought to      C)used to      B)may      D)need
   
    88 A)Any      C)Other      B)One      D)Another
   
    89 A)Whatever     C)Whenever      B)Whichever      D)Wherever
   
    90 A)most      C)least       B)worst      D)best
   
    26
   
    完形填空答案：
   
    71-80 AADAB CDCBD　81-90 CAADB CBDAC