题目内容
选择题
本大题共12小题，每小题2分。在每小题所给出的四个选项中，只有一项是符合题目要求的。
整个教育科学体系中的基础学科是
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【C11】
The study estimated that there are a(n) 【C9】______ of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not 【C10】______ fainting and dizziness are the most frequent complaints. 【C11】______ 13% of them— roughly four a day are serious enough to 【C12】______ a pilot to change course. The most common of the serious emergencies 【C13】______ heart trouble, strokes, and difficulty breathing.
Let's face it: plane rides are 【C14】______ . For starters, cabin pressures at high altitudes are set at roughly 【C15】______ they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty 【C16】______ , but passengers with heart disease 【C17】______ experience chest pains as result of the reduced amount of oxygen flowing through their blood. 【C18】______ common in- flight problem is deep venous thrombosis— the so-called economy class syndrome (综合症). 【C19】______ happens, don't panic. Things are getting better on the in-flight- emergency front. Thanks to more recent legislation, flights with at 【C20】______ one attendant are starting to install emergency medical kits to treat heart attacks.
【C1】
A prescription is as personal as your name. It is designed for you alone. It is based on such factors as your age, weight, general health, allergies (过敏症), and other factors, as well as your illness.
Never take a prescription drug meant for another person, even if you think you have the same illness. Prescriptions aren't supposed to be traded around the family or neighborhood. Each prescription is intended for an individual. It is a violation of federal law to sell a prescription drug without a prescription.
Doctors and dentists are licensed by each state to prescribe drugs for human use. Doctors for veterinary (兽医的) medicine are licensed to prescribe drugs for animal use.
A licensed medical doctor must pass all examination m practice medicine in a certain state. Before doing this, he or she has probably completed at least two years of a premedical course, a four-year medical course, two years of internship (实习) or residency in a hospital, and perhaps an extra year or more of training in a specialty -- altogether at least eight years of medical training, possibly nine.
Don't take prescriptions written for you during a previous illness without first checking with your doctor. Your illness may not be the same as the previous one, even though you think it is. Also the drug may have lost strength. Only a doctor is qualified to advise you about continuing to take a medicine.
Why does the law require that some drugs be used under a doctor's prescription？
What should an American with sufficient medical training do in order to become a licensed
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