2. 外语
  3. 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?"

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?"

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问题     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(1)_____ only once—for a woman who had merely fainted. But the(2)_____ made me quite curious about how(3)_____ this kind of thing happens. I wondered what I would do if(4)_____ with a real midair medical emergency—without access (5)_____ a hospital staff and the usual emergency equipment. So(6)_____ the New England Journal of Medicine last week(7)_____ a study about inflight medical events, I read it(8)_____ interest.
    The study estimated that there are a(n)(9)_____ of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not(10)_____; fainting and dizziness are the most frequent complaints. (11)_____ 13% of them—roughly four a day—are serious enough to(12)_____ a pilot to change course. The most common of the serious emergencies(13)_____ heart trouble, strokes, and difficulty breathing.
    Let’s face it: plane rides are(14)______. For starters, cabin pressures at high altitudes are set at roughly(15)_____ they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty(16)______, but passengers with heart disease(17)_____ experience chest pains as result of the reduced amount of oxygen flowing through their blood.(18)_____ common in-flight problem is deep venous thrombosis— the so-called economy class syndrome.(19)_____ happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation, flights with at(20)_____ one attendant are starting to install emergency medical kits to treat heart attacks.
(14)
选项 A、enjoyable
B、stimulating
C、tedious
D、stressful
答案D
解析 本句为本段的主题句，看下文得知全段内容跟pressure相关。故可知答案选D项stressful“充满压力的”。enjoycable“享受的”；tedious“乏味的”；stimulating“刺激的”。
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