下列物质中含有的原子数最多的是（） A．0.45mol氮气 B．4℃时10mL

Old age may not sound exciting. But recent findings offer good news for older people and for people worried about getting older. Researchers found that people become happier and experience less worry after they reach the age of 50. In fact, they say by the age of 85, people are happier with their life than they were when they were 18 years old.

The findings came from a survey of more than 340,000 adults in the United States. The Gallup Organization questioned them by telephone in 2008. At that time, the people were between the ages of 18 and 85. The researchers asked questions about emotions like happiness, sadness and worry. They also asked about mental or emotional stress.

Arthur Stone in the Department of Psychiatry and Behavioral Science at Stony Brook University in New York led the study. His team found that levels of stress were highest among adults between the ages of 24 and 25. The findings showed that stress levels dropped sharply after people reached their fifties.

The study also showed that men and women have similar feeling patterns as they grow older. However, women at all ages reported more sadness, stress and worry than men.

Researchers say they do not know why happiness increases as people get older. One theory is that, as people grow older, they grow more thankful for what they have and have better control of their feelings. They so spend less time thinking about bad experiences.

Professor Stone says the emotional patterns could be linked to changes in how people see the world, or maybe even changes in brain chemistry.

The researchers also considered possible influences like having young children, being unemployed or being single. But they found that influences like these did not affect the levels of happiness and well-being related to age.

小题1:According to the survey of the Gallup Organization people are most likely to become happier      .

A．when they are between the ages of 18 and 85

B．when they come to their old age

C．when they are in their twenties

D．when they are 18 years old小题2:You may have the highest level of stress when you are at the age of      .

A．20

B．25

C．35

D．40小题3:According to Arthur Stone, old people may      .

A．have a positive attitude towards their life

B．know how to spend money wisely

C．dream about good things every day

D．control their behaviors better小题4:Who would probably show the greatest interest in the passage?

A．Those who are worried about getting old

B．Those who are single and unemployed

C．Those who feel unhappy all the time

D．Those who suffer from mental stress小题5:What would be the best title for the passage?

A．Getting Older Means Getting Happier

B．The Young Are Happier Than the Old

C．Women Are Easier to Be Happy in Life

D．The Younger, the Happier

无论是PNP还是NPN型结构的三极管，它们都各有两个PN结。

低碳经济是以低能耗、低污染、低排放为基础的经济模式，是我国未来经济发展的增长点。我国是全世界自然资源浪费最严重的国家之一，另据统计，中国的能源使用效率仅为美国的26.9%，日本的11.5%。因此，推进节能减排，可谓迫在眉睫。在节能问题上，不同部门有着不同的职责。

结合材料，依照要求，运用政治生活知识填写下表。（12分）

依《航道法》规定，水工程需大幅度减流或者大流量泄水的，应当提前通报负责航道管理的部门和（），给船舶避让留出合理的时间。

A、海事管理机构

B、即将过往船舶

C、当地人民政府

D、县级以上交通管理部门

请根据以下描述完成判断题以下问题。
无锡一新成立的服装生产企业向日本出口一批男式衬衣(检验检疫类别为m/n)，纸箱包装，出境口岸上海。

根据有关规定，对该商品须实施纺织品标识查验。因此，经检验检疫合格后，该企业应向检验检疫机构申请签发《检验证书》，以证明服装的标识符合要求。 ( )