题目内容
（请给出正确答案）
What is true about caffeinated tea？
A.It affected women’s memory in the same manner as coffee.
B.It influenced women’s memory as effectively as coffee.
C.It boosted women’s memory in the same rate as coffee.
D.It contained che same amount of caffeine as coffee.
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更多“What is true about caffeinated…”相关的问题
第1题
ory decline at age 65 than whose who drank one cup or less daily. And the benefit increased with age. Women over age 80 who drank three or more cups of coffee a day were about 70 percent less likely to have memory decline than those who drank one cup or less. the researchers said.
Caffeinated tea had the same effect in the women. the study found, although more was needed to get the same caffeine boost. "Count roughly two cups of tea for a cup of coffee," said study leader Karen Ritchie of INSERM, the French National Institute for Health and Medical Research. But the researchers didn&39;t find a similarly protective effect in men, although other studies have found a benefit to males.
How might caffeine help ward off cognitive decline? "It is a cognitive stimulant." said Ritchie. It also helps to reduce levels of the protein called beta amyloid in the brain. she said. "whose accumulation is responsible for Alzheimer&39;s disease but which also occurs in normal aging."
Ritchie said she wasn&39;t sure why men in the study didn&39;t benefit from caffeine. "Our hypothesis is that either women metabolize caffeine differently than men, or there may be an interaction of the caffeine with the sex hormones.the estrogen-progesterone balance," she said.
The French study confirms previous research, said William Scott. professor of medicine at the University of Miami Miller School of Medicine. who has researched caffeine&39;s beneficial effects against Parkinson&39;s disease, also a neurodegenerative disorder.
As for caffeine only protecting women, Scott noted that just 2,800 of the 7,000 study participants were men. and the results might have differed if more men were included.
A study published in February in the European Journal of Clinical Nutrition looked at 676 healthy men and found that regular coffee drinkers had a lower rate of cognitive decline over a 10-year follow-up than those who didn&39;t drink coffee. Those who drank three cups daily had the least signs of decline. Both Scott and Ritchie agreed that more study is needed. Ritchie&39;s research will next look at the relationship between caffeine and Alzheimer&39;s.
测试题
As it is indicated in the l st paragraph, how does coffee influence women’s memory?
A.The older the woman was. the more remarkable her memory was.
B.The more coffee the woman drank, the more slowly her memory declined.
C.The older the woman was, the more slowly her memory declined.
D.The more coffee the woman drank. the more remarkable her memory was.
第2题
Commercials create che sensation of loudness because____________________.
A.TV stations always operate at the highest sound levels
B.their sound levels are kept around peak levels
C.their sound levels are kept in the middle frequency ranges
D.unlike regular programs their intensity of sound varies over a wide range
第3题
to the fact that technology_______________.
A.has a great impact on human life
B.has some characteristics of human nature
C.can replace some aspects of the human mind
D.does not exist in the natural world
第4题
A.technological innovation can promote social stability
B.political instability will cause consumption io drop
C.new farming and crop technology can lead to overproduction
D.new sources are always becoming available
第5题
According to the opponents of nuclear energy, nuclear energy is________________.
A.primitive
B.cheap
C.exhaustible
D.unsafe
第6题
m to be falling?
A.Mainly because the levels of carbon dioxide are rising.
B.Possibly because the ice caps in the poles are melting.
C.Because the inertia of the earth's climate take effect.
D.Partly because the output of solar energy varies.
第7题
The article was written io explain____________.
A.the greenhouse effect.
B.che sola:r effects on the earth.
C.the models of solar-weather interactions.
D.the causes affecting weather.
第8题
The author believes that_____________.
A.the motion of the plates corresponds to thar of the earth's interior
B.the geological theory about drifting plates has been proved to be true
C.the hot spots and the plates move slowly in opposite directions
D.the movement of hot spots proves the continents are moving apart
第9题
The author uses the example in the last paragraph m support his idea that___________.
A.snakes do not begin the aggressive act if it is not disturbed
B.some snakes are more aggressive and more ready to attack
C.it is hard to forecast whether and how snakes would attack
D.snakes often conceal themselves as their principal defense
第10题
eans________________.
A.the snakes combine all the previous three steps
B.the snakes give up all the previous three steps
C.che snakes follow all the previous steps one by one
D.the snakes reverse the order of all the previous steps
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