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  3. (46) Yet, after wrapping a flexible cuff around your arm and pumping it up, your doctor frowns and gives you the bad news:you ar

(46) Yet, after wrapping a flexible cuff around your arm and pumping it up, your doctor frowns and gives you the bad news:you ar

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问题     (46) Yet, after wrapping a flexible cuff around your arm and pumping it up, your doctor frowns and gives you the bad news:you are one of the roughly 60 million Americans who have high blood pressure. Because it can lurk in the body without your knowing it, high blood pressure has been called the silent killler. (47) (48) Depending on how high your pressure is, how you live and what changes you’re willing to make in your lifestyle, treatment can be tailored specifically to you. (49) The first, or top, number is the systolic reading, the pressure of blood against artery walls when the heart beats—the period of highest tension. The second, or bottom, number is the diastolic—the minimum pressure, between beats, when the heart is filling with blood and artery walls are relaxed. If the diastolic goes over 105 and stays there through several readings, that’s the beginning of the danger zone, moderate hypertension, and continued monitoring is essential. Once the diastolic rises above 115, the condition is severe. A diastolic between 90 and 104 falls into the gray area of "mild" hypertension. (50)
A. These drugs can lower blood pressure by getting rid of excess fluid and salt in the body.
B. It is the leading cause of strokes and a major factor in heart attacks and kidney failure.
C. You’ve had no symptoms, no pain, no sense of being sick.
D. For the average adult, a healthy blood-pressure reading is 120 over 80, or lower.
E. Three-fourths of those with high blood pressure are in this category.
F. The good news is that thanks to an explosion of research, science now knows how to defuse the danger, and control the disease.
选项
答案F
解析 选项F所在段落的大意是“值得庆幸的是，由于进行了大量的研究工作，科学研究现已知道怎样预防危险并控制该病。依据你的血压高度，你的生活方式以及你愿意在生活方式上作些什么改变，可以为你拟出特定的治疗方案。”
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