应如何对政策工具加以分类？

The middle class mainly refers to people

A．who were born as aristocrat

B．who have the right to sit in the House of Lords

C．who speak in many different local accents

D．who are prosperous businessmen or who work in some professions

The marriage between seniors and computers is very natural, because ______.

A．old people were not good at computers when they were young

B．old people are too shy to talk with each other

C．old people used to write a lot of letters and keep diaries

D．most of the old people who use Senior-Net are disabled

A、Baby Boomers

B、Generation X

C、Generation Y

D、Generation Z

The middle class mainly refers to people

A．who were born as aristocrat

B．who have the right to sit in the House of Lords

C．who speak in many different local accents

D．who are prosperous businessmen or who work in some professions

听力原文： People born in the autumn live longer than those born in the spring and are less likely to fall chronically ill when they are older, according to an Austrian scientist.

Using census data for more than one million people in Austria, Denmark and Australia, scientists at the Max Planck Institute for Demographic Research in the northern German town of Rostock 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 older age.

"A mother giving birth in spring spends the last phase of her pregnancy in winter, when she will eat less vitamins than in summer, ' said Gabriele Doblhammer, one of a team of scientists who carried out the research. "When she stops breast-feeding and starts giving her baby normal food, it's in the hot weeks of summer when babies are prone to infections of the digestive system. '

In Austria, adults born in autumn (October-December) lived about seven months longer than those born in spring (April-June), and in Denmark adults with birthdays in autumn outlived those born in spring by about four months. In the southern hemisphere, the picture was similar. Adults born in the Australian autumn—the European spring—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, Doblhammer said.

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A．Those who were born in spring.

B．Those who were born in summer.

C．Those who were born in autumn.

D．Those who were born in winter.

In 1995, approximately how many million people were on the Zone Diet？

A．12

B．16

C．23

D．27

E．35

A．young people in their first job

B．men who were working

C．women who were unemployed