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Which of the following statements is NOT true about the survey? [br] [originalt
Which of the following statements is NOT true about the survey? [br] [originalt
游客
2025-01-17
21
管理
问题
Which of the following statements is NOT true about the survey? [br]
Measuring people’s sense of smell in later life could help doctors predict how likely they are to be alive in five years’ time, a PLOS One study suggests. A survey of 3, 000 adults found 39% with the poorest sense of smell were dead within five years — compared 19% with moderate smell loss and just 10% who identified odors correctly.
And despite taking issues such as age, nutrition, smoking habits, poverty and overall health into account, researchers found those with the poorest sense of smell were still at greatest risk.
Lead scientist, Prof. Jayant Pinto, said: "We think loss of the sense of smell doesn’t directly cause death, but it is a harbinger, an early warning system that shows damage may have been done. Our findings could provide a quick inexpensive way to identify patients most at risk. " Exactly how smell loss contributes to lifespan remains unclear, but the researchers put forward a number of possible reasons behind the link.
They say a reduced ability to sniff out odors could signal less regeneration or repair of cells in the body overall, as a healthy sense of smell depends partly on a continual turnover of cells that line the nose.
And a worsening sense of smell may serve as a mirror for a lifetime’s exposure to pollution and bugs, they say.
选项
A、Loss of the sense of smell caused death.
B、Pollution and bugs caused death.
C、People with poor smell sense are more likely to die.
D、Sense of smell is related to age and nutrition.
答案
C
解析
本题考查的是实验的结果、发现。为保证实验结果的准确性,要考虑相关变量,如年龄和营养。在此基础上分析嗅觉与寿命的相关性,才更有说服力。但实验并未直接说明嗅觉与年龄、营养相关,D不正确。实验发现嗅觉失灵与死亡之间有很大关联,但嗅觉失灵不直接导致死亡。A与此发现相反,C与此发现相符。在进一步分析引起此发现的原因时,指出污染和臭虫是使嗅觉逐渐失灵的原因之一,但没有说这两者导致死亡,所以B选项也不正确。
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