2. 外语
  3. Happy Marriage, Happy Heart Happily married people have lower blood pressure 【51】______ unhappily married people or singles,

Happy Marriage, Happy Heart Happily married people have lower blood pressure 【51】______ unhappily married people or singles,

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问题                             Happy Marriage, Happy Heart
    Happily married people have lower blood pressure 【51】______ unhappily married people or singles, a Brigham Young University study says.
    On the other 【52】______ , even having a supportive social network did not translate into a blood pressure benefit for singles or unhappily married people, according to the study.
    "There seems to be some unique health benefits from marriage.  It’s not just being married 【53】______ benefits health—what’s really the most protective of health is having a 【54】______ marriage", study author Julianne Holt-Lunstad, a psychologist who specializes in relationships and health, said in a prepared statement.
    The study included 204 married and 99 【55】______ adults who wore portable blood-pressure monitors for 24 hours. The 【56】______ recorded blood pressure at random intervals and provided a total of about 72 readings.
    "We wanted to capture participants’ blood pressure doing whatever they normally 【57】______ in everyday life. Getting one or two readings in a clinic is not really 【58】______ of the fluctuations(波动) that occur throughout the day", Holt-Lunstad said.
    Overall, happily married people scored four points 【59】______ on the blood pressure readings than single adults. The study also found that blood 【60】______ among married people, especially those in happy marriages, 【61】______ more during sleep than in single people.
    "Research has shown that people whose blood pressure remains high throughout the night are at 【62】______ greater risk of heart disease than people whose blood pressure drops", Holt-Lunstad said.
    The study was published in the March 20 【63】______ of the journal Annals(年刊) of Behavioral Medicine.
    The study also found that unhappily married adults have higher blood pressure than both happily married 【64】______ single adults.
    Holt-Lunstad noted that married couples can encourage healthy habits in one【65】______, such as eating a healthy diet and having regular doctor visits. People in happy marriages also have a source of emotional support, she said.
选项 A、from
B、to
C、than
D、by
答案C
解析 本句用了表示比较的lower一词，因此空格处只能选than一词。
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