【单选题】
下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。
Happily married people have lower blood pressure{{U}} (51) {{/U}}unhappily married people or singles, aBrigham Young University study says.
On the other hand, even having a supportive social network did not translate into a blood pressure benefit for singles or unhappily{{U}} (52) {{/U}}people, according to the study.
"There seems to be some unique health benefits from marriage. It’s not just being married{{U}} (53) {{/U}}benefits health—what’s really the most protective of health is having a happy{{U}} (54) {{/U}}," 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{{U}} (55) {{/U}}adults who wore portable blood-pressure monitors for 24 hours. The{{U}} (56) {{/U}}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{{U}} (57) {{/U}}in everyday life. Getting one or two readings in a clinic is not really{{U}} (58) {{/U}}of the fluctuations (波动) that occur throughout the day,’ Holt-Lunstad saiD、
Overall, happily married people scored four points{{U}} (59) {{/U}}on the blood pressure readings than single adults. The study also found that blood{{U}} (60) {{/U}}among married people—especially those in happy marriages{{U}} (61) {{/U}}more during sleep than in single people.
"Research has shown that people whose blood pressure remains high throughout the night are at{{U}} (62) {{/U}}greater risk of heart disease than people whose blood pressure drops," Holt-Lunstad saiD、
The study was published in the March20{{U}} (63) {{/U}}of the journalAnnals (年刊) ofBehavioral Medicine.
The study also found that unhappily married adults have higher blood pressure than{{U}} (64) {{/U}}happily married and single adults.
Holt-Lunstad noted that married couples can encourage healthy habits in one{{U}} (65) {{/U}},such as eating a healthy diet and having regular doctor visits. People in happy marriages also have a source of emotional support, she saiD、
B．number
C．copy
D．issue
网考网参考答案：D
网考网解析：
[解析] 此处表示出版的杂志的第几期，应用issue一词，故选D。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>
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