更多"It is estimated that 150,000 women "的相关试题:
[单项选择]
Why do men die earlier than women The latest research makes it known that the reason could be that men’s hearts go into rapid decline when they reach middle age.
The largest study of the effects of ageing on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.
"We have found that the power of .the male heart falls by 20--25 percent between 18 and 70 years of age," said the head of the study, I)avid Goldspink of Liverpool John Moores University in the UK.
"Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70, one third of those cells die and are not replaced in men," said Goldspink. "This is part of the ageing process."
What surprises scientists is that the female heart sees very little loss of these cells. A healthy 70-year-old woman’s heart could perform almost as well as a
A. men's heart cells
B. women's ageing process
C. the gender difference
D. hearts and long life
[填空题]Every year about 50,000 Americans die of diseases resulting from obesity.
[简答题]Killer Sentenced to Die for Second Time in 10 Years.
[单项选择]Science fiction is called a literary subgenre because ______.
A. it is not important enough to be a literary genre
B. it cannot be made into a dramatic presentation
C. it shares characteristics with other types of prose fiction
D. it has its limits
[单项选择]Strange things happen to time when you travel because()
A. no day really has twenty-four hours
B. the earth is divided into time zones
C. time zones are not all the same size
D. no one knows where time zones begin
[单项选择]Mr. White brought a countercharge against you because you had______ him for smuggling several pieces of antiques and cultural relics.
A. charged
B. indicted
C. accused
D. prosecuted
[单项选择]Young children are likely to dream of fairies because_________.
A. they have a strong desire to see such fairies
B. they have seen such beautiful girls in their dreams before
C. the fairies have once appeared somewhere
D. such fairies may bring them good luck in their exam
[填空题]Ice crystals do NOT immediately fall to Earth because______.
[单项选择]Rain is slight acidic even in unpolluted air, because carbon dioxide in the atmosphere and other natural acid-forming gases dissolve in thewater.
[单项选择]A policeman has to be trained in criminal law because______.
A. he must work hard to help reform criminals
B. he must believe as professional lawyers do
C. he must be able to tell when and where a crime is committed
D. he must justify the arrests he makes of criminals
[单项选择]Coca-Cola is to take new action most probably because ______.
[单项选择]As a boy, Alfred Adler was poor at arithmetic because ______.
A. he lost his serf-confidence
B. he was mentally retarded
C. his teacher had no confidence in herself
D. his parents expected too much of him
[单项选择]She ought to stop working; she has a headache because she()too long.
A. has been reading
B. had read
C. is reading
D. read
[单项选择]Du Bois's family was respected in the village because ______.
A. the Civil War had eliminated racial discrimination in the U.S.
B. his grandmother could recite the history of the western world
C. Du Bois was considered something of a prodigy and very promising
D. his great-grandfather had fought in the American war of independence
[单项选择]A) got C) made
B) came D) became
A. got
B. came
C. made
D. became