American presidents seem to age before our eyes. But the common belief that high-office stress grays our leaders faster than【C1】

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问题     American presidents seem to age before our eyes. But the common belief that high-office stress grays our leaders faster than【C1】________may be a myth, new research finds. In fact, the majority of American presidents have lived longer than【C2】________men of their times.
    That’s not to【C3】________that chronic stress has no effect on a person’s lifespan, but【C4】________does high social standing. The findings【C5】________a body of research linking high status to better health:【C6】________, Oscar winners live longer than those who were only【C7】________; and the long life effect is also seen in Nobel Prize winners.
    The new study, which was published in the Journal of the American Medical Association,【C8】________the dates of birth, inauguration and death of all 34 past presidents who died of natural causes. The【C9】________lifespan for these men should have been 68 years,【C10】________they’d aged twice as fast during their years in 【C11】________as the popular wisdom suggests they do.
    【C12】________the study found, these presidents lived an average 73 years. And indeed, 23 of the 34 presidents who died of natural causes lived longer than【C13】________, compared with other men their age during their lifetimes.
    Some presidents【C14】________an exceptionally long time: Gerald Ford died at 93.5 years, AND Ronald Reagan at 93.3. All【C15】________living presidents have already exceeded their life【C16】________, or are likely to do so.
    So why do people【C17】________the top of the hierarchy fare better than those below?【C18】________to wealth, education and the best health care of their times would seem to be obvious factors【C19】________medical attention seems to have actually killed President Garfield, who died from a fatal【C20】________introduced by his doctors’ unclean treatment techniques after he was shot by an assassin.
【C13】

选项 A、suspected
B、expected
C、identified
D、confirmed

答案B

解析 上下文语义题。上文提到大众认为总统的寿命应为68岁,但该段提到研究发现这些总统事实上平均活到了73岁,可见这超出了人们的“预料”,故选B项expected“预料”。A项suspected“怀疑”侧重于指怀疑某件坏事可能是事实,总统的寿命是没必要去怀疑的,故排除。lived longer既然是既定的事实,那么无须跟“确认或证实”的寿命作比较(句中为than比较级结构),排除C项identify “确定;识别”和D项confirm“确认,证实”。
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