第五段
正数第二行“An increase in some cancers and bronchitis may reflect changing smoking habits

and poorer air quality, say the researchers ”，对应第十九题。
第六段
正数第一行“One interesting correlation Manton uncovered is that better-educated people are

likely to live longer ”，对应第二十题。
第七段
正数第四行“That represents a significant drop in the number of disabled old people in the

population”，对应第二十一题。
正数第七行“According to Manton, slowing the trend has saved the United States government’s

Medicare system more than $200 billion, suggesting that the graying of America’s population

may prove less of a financial burden than expected”，对应第二十二题。
第八段
正数第一行“The increasing self-reliance of many elderly people is probably linked to a

massive increase in the use of simple home medical aids ”，对应第二十三题。
第九段
正数第一行“Maintaining a level of daily physical activity may help mental functioning ”和

倒数第二行“may prevent the brains of active humans from deteriorating ”，对应第二十四题。
第十段
正数第三行“those who felt in control of their lives pumped out lower levels of stress

hormones such as cortisol.”，对应第二十五题。

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