首页
登录
职称英语
The age-old riddle of why many women outlive men has been solved. It’s their
The age-old riddle of why many women outlive men has been solved. It’s their
游客
2023-07-14
19
管理
问题
The age-old riddle of why many women outlive men has been solved. It’s their pumping power, British researchers have found.
The average male heart becomes weaker【C1】______age, and by the age of 70 its power to pump blood around the body could have【C2】______by up to a quarter of its youthful strength. Unlike men, women pump just as strongly at 70 as they do at 20.【C3】______the same period there was no age-related【C4】______in the power of the female heart,【C5】______that the heart of a healthy 70-year-old woman could【C6】______almost as well as a 20-year-olds. The【C7】______difference between the sexes might【C8】______for why women live longer.
The good news is that men of any age can【C9】______the health of their heart simply by taking more【C10】______exercise. The results are based on the【C11】______of a two-year study of a cross-section (横截 面) of the British population, which【C12】______the effects of aging on the cardiovascular (心血管 的) system. David Goldspink, Professor at Liverpool John Moores University, examined more than 250 men and women between 18 and 80. None of the【C13】______had a weekly exercise routine and all were【C14】______to have low fitness levels, but were【C15】______healthy. Each of them【C16】______five hours of tests to measure their blood pressure and the performance of their heart while at【C17】______and while they exercised on a treadmill (跑步机).
The researchers found that the large arteries (动脉) in the body became【C18】______and less elastic (有弹性的) with age, causing increased blood pressure. Blood flow to the muscles and skin of the limbs was also found【C19】______to decrease. These changes were found to occur earlier in men,【C20】______women caught up soon after the menopause (更年期) . [br] 【C3】
选项
A、Until
B、From
C、Over
D、By
答案
C
解析
介词辨义题。前面提到,“女性70岁的心脏和20岁时一样强健有力,而男性到70岁时,他们的心脏向全身供血的能力最多可能减少为年轻时的1/4”,此处提到“同年龄范围的女性未显示出老龄化可导致女性心脏衰弱”。over意为“在……期间,直到……完了(或过后)”,over the same period意为“在相同时期内”,符合文意。其余介词在此均不符合句意,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/2835925.html
相关试题推荐
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
Theage-oldriddleofwhymanywomenoutlivemenhasbeensolved.It’stheir
随机试题
Formanypeopletoday,readingisnolongerrelaxation.Tokeepuptheirwor
Abooklesslifeisa/an【C1】______life.Booksinfluencethedepthand【C2】__
TessoftheDurbervilleswaswrittenby_____.A、HardyB、EmilyC、DickensD、Austen
[audioFiles]audio_eusm_0219(20106)[/audioFiles]A、TochatwithJacksocially.B、
该男孩可能缺乏的营养素是() A.维生素PP B. C. D.维生素
定喘穴的定位是在脊柱区()A.横平第6颈椎棘突下,后正中线旁开0.5寸
厚朴、杜仲净制应A.去残根B.去毛C.去心D.去残茎E.去皮壳
下列哪种人群具有注册执业护士的条件A.无完全民事能力者 B.色盲 C.违反护
某建设项目只有一个单项工程。关于该项目施工图预算编制要求的说法,正确的是()A.
关于分部分项工程成本分析,下列说法正确的有( )。 A.分部分项成本分析是
最新回复
(
0
)