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
2024-02-15
20
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] 【C18】
选项
A、thicker
B、tighter
C、harder
D、stiffer
答案
D
解析
形容词辨义题。根据空格后的less elastic“缺少弹性”可知,此处是指“逐渐僵硬”,所以stiff“僵直的,僵硬的”符合文意。thick“厚的,粗大的”;tight“紧的,密封的”;hard“坚硬的,坚固的”,均与文意不符。
转载请注明原文地址:http://tihaiku.com/zcyy/3452206.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
[originaltext]6.NeverhaveIbeenmorewillingtocooperate!AlthoughIwasa
[originaltext]WhenIraqtroopsblewuphundredsofKuwaitioilwellsatthe
[originaltext](5)WhendevastatingearthquakeshitHaiti,JapanandNepal,
Forthispart,youareallowedthirtyminuteswwriteacompositiononthetopic
Thecommoncoldisthemostfrequentofallillness.Atanygivenmoment,ab
IPv6的链路本地地址是在地址前缀1111111010之后附加()形成的
下列符合图4所示含义的是( )。 A.随pH从5升高到7,酶的活性逐渐
房屋租赁当事人办理房屋租赁登记备案,应当提交的材料包括( )。A.房屋租赁合同
下列可引起右心室前负荷增大的是A、肺动脉瓣狭窄 B、肺动脉栓塞 C、室间隔缺
某轴承厂1~4月份的顾客投诉和所有的现场检测记录如下:轴承滚齿不合格40项、外观
最新回复
(
0
)