[填空题]American presidents seem to age before our eyes. But common belief that high-office stress grays our leaders faster than --62-- may be a myth, new research finds. In fact, the majority of American presidents have lived longer than --63-- men of their times. That’s not to --64-- that chronic stress has no effect on a person’s lifespan, but -65-- does high social standing. The findings --66-- to a body of research linking high status to better health: --67-- , Oscar winners live longer than those who were only --68-- ; and the longevity (长寿) effect is also seen in Nobel Prize winners. The new study, which was published in the Journal of the American Medical Association --69-- the dates of birth, inauguration and death of all 34 past presidents who died of natural causes. The --70-- lifespan for these men should have been 68 years， --71-- they’d aged twice as fast during their years in --72-- as the popular wisdom suggests they do. --73--, the study found, these presidents live
A. A．Appeal
B．Access
C．Entrance
D．Channel