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-born 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. Adults 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______.
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
The fact that blind people can "see" things using other parts of their bodies apart from their eyes may help us to understand our feelings about colour. If they can sense colour differences then perhaps we, too, are affected by colour unconsciously. Manufacturers have discovered by trial and error that sugar sells badly in green wrappings, and that blue foods are considered unpleasant, and the cosmetics should never be packaged in brown. These discoveries have grown into a whole discipline of colour psychology that now finds application in everything from fashion to interior decoration. Some of our preferences are clearly psychological. Dark blue is the colour of the night sky and therefore associated with passivity and calm, while yellow is a day colour with associations of energy and incentive. For primitive man, activity during the day meant hunting and attacking, while he soon saw red as the colour of blood and rage and the heat that came with effort. And green is associated with passive defence and self-preservation. Experiments have shown that colours, partly because of their psychological association, also have a direct psychological effect. People exposed to bright red show an increase in heartbeat, and blood pressure; red is exciting. Similar exposure to pure blue has exactly the opposite effect; it is a calming colour. Because of its exciting connotations(含义), red was chosen as the signal for danger, but closer analysis shows that a vivid yellow can produce a more basic state of alertness and alarm, so fire engines and ambulances in some advanced communities are now rushing around in bright yellow colours that stop the traffic dead. Which of the following statements is NOT true according to the passage
A. The psychology of colour is of some practical use.
B. Colour probably has an effect on us which we are not conscious of.
C. People exposed to pure blue start to breathe slowly.
D. Yellow fire engines have caused many traffic accidents in some advanced communities.
The fact that blind people can "see" things using other parts of their bodies apart from their eyes may help us to understand our feelings about colour. If they can sense colour differences then perhaps we, too, are affected by colour unconsciously. Manufacturers have discovered by trial and error that sugar sells badly in green wrappings, and that blue foods are considered unpleasant, and the cosmetics should never be packaged in brown. These discoveries have grown into a whole discipline of colour psychology that now finds application in everything from fashion to interior decoration. Some of our preferences are clearly psychological. Dark blue is the colour of the night sky and therefore associated with passivity and calm, while yellow is a day colour with associations of energy and incentive. For primitive man, activity during the day meant hunting and attacking, while he soon saw red as the colour of blood and rage and the heat that came with effort. And green is associated with passive defence and self-preservation. Experiments have shown that colours, partly because of their psychological association, also have a direct psychological effect. People exposed to bright red show an increase in heartbeat, and blood pressure; red is exciting. Similar exposure to pure blue has exactly the opposite effect; it is a calming colour. Because of its exciting connotations(含义), red was chosen as the signal for danger, but closer analysis shows that a vivid yellow can produce a more basic state of alertness and alarm, so fire engines and ambulances in some advanced communities are now rushing around in bright yellow colours that stop the traffic dead. If people are exposed to bright red, which of the following things does NOT happen
A. They feel afraid.
B. Their hearts beat faster.
C. They breathe faster.
D. Their blood pressure rises.
社会主义制度在我国基本建立起来的标志是______。
A. 1949年新中国成立
B. 1952年土地改革任务基本完成
C. 1956年“三大改造”完成
D. 1978年实行改革开放