Why were the autobiographies of about 180 Catholic nuns analyzed? A.To find out whether positivity may play a role in living longer. B.To find out whether a lot of exercise will affect peoples health. C.To determine the causes of some health problems. D.To gather some data about living under stress.
A.To B. B.To C. C.To D. D.To E.
【参考答案】
A 线索词:autobiographiesofabout180Catholicnuns定位处:第二十段。解析:文......