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  3. As heart disease continues to be the number-one killer in the United States, researchers have become increasingly interested in

As heart disease continues to be the number-one killer in the United States, researchers have become increasingly interested in

admin2011-04-26  99
问题     As heart disease continues to be the number-one killer in the United States, researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks. High-fat diets and "life in the fast track" have long been known to contribute to the high incidence of heart failure. But according to new studies, the list of risk factors may be significantly longer and quite surprising.
    Heart failure, for example, appears to have seasonal and temporal patterns. A higher percentage of heart attacks occur in cold weather, and more people experience heart failure on Monday than on any other day of the week. In addition, people are more susceptible to heart attacks in the first few hours after waking. Cardiologists first observed this morning phenomenon in the mid-1980, and have since discovered a number of possible causes. An early-morning rise in blood pressure, heart rate, and concentration of heart stimulating hormones, plus a reduction of blood flow to the heart, may all contribute to the higher incidence of heart attacks between the hours of 8:00 AM and 10:00 AM.
    In other studies, both birthdays and bachelorhood have been implicated as risk factors. Statistics reveal that heart attack rates increase significantly for both females and males in the few days immediately preceding and following their birthdays. And unmarried men are more at risk for heart attacks than their married counterparts. Though stress is thought to be linked in some way to all of the aforementioned risk factors, intense research continues in the hope of further comprehending why and how heart failure is triggered.
Which of the following is NOT cited as a possible risk factor?
选项 A、High in cholesterol.
B、Conjugal affection.
C、Eating fatty foods.
D、Being under stress.
答案B
解析 本题为是非判断题。在第三段中提到“And unmarried men are more at risk for heart attacks than their married counterparts.”(此外，未婚男士比已婚男士容易得心脏病。)而选项 B 意思是：夫妻双方的爱是引发心脏病的一个危险因素，其意思正好与文章的意思相反。而根据常识，其他三项胆固醇高、吃油腻的食物、有压力，都有可能引起心脏病的发作。
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