People born in autumn live longer than those born in spring and are less likely to fall chronically ill when they are older, acc

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问题     People born in autumn live longer than those born in spring and are less likely to fall chronically ill when they are older, according to an Austrian scientist, Using census (人口普查) data for more than one million people in Austrian. Denmark and Australia, scientists at the Max Plank Institute for Demographic (人口统计的) Research found the month of birth was related to life expectancy over the age of 50. Seasonal differences in what mothers ate during pregnancy, and infections occurring at different times of the year could both have an impact on the health of a new - bom baby and could influence its life expectancy in old age. " A mother giving birth in spring spends the last stage of her pregnancy in winter, when she will eat fewer vitamins than in summer. " said one of the scientists. " When she stops breast - feeding and starts giving her baby normal food, it’s in the hot weeks of summer when babies are inclined to infections of the digestive system. " In Austria, adults born in autumn lived about seven months longer than those born in spring, and in Denmark adults with birthdays in autumn outlived those born in spring by about four months. In the southern hemisphere, the picture is similar. A-dults born in the Australian autumn lived about four months longer than those born in the Australian spring. The study focused on people born at the beginning of the 20th century, using death certificates and census data. Although nutrition at all times of the year has improved since then, the seasonal pattern persists.
The last sentence of the passage implies that________.

选项 A、the seasonal pattern determines a person’s life expectancy
B、the seasonal pattern still influences life expectancy even if nutrition improves at all times of the year
C、the seasonal pattern has an impact on food values
D、the seasonal pattern will not change even if nutrition has improved much in modern age

答案B

解析 这是一道考察推理的题型,要求考生推断文章最后一句话“Although nutrition at all times of the year has improved since then,the seasonal pattern persists.”所暗示的内容。文章最后一句话的意思:尽管人们在一年中各个时期的营养状况与那时相比都已经有所改善,但仍然存在季节性差异。换种说法就是,季节性差异也会对新生儿的健康和平均寿命产生影响。我们可推出选项B符合题意。而选项A,“季节模式决定人的平均寿命”中明显夸大了季节性差异的影响。而选项C,“季节模式影响食物的价值”。选项D,“季节模式不会改变,即使现代社会人的营养状况大有改善”文章中并没有涉及。
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