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A study that will cost $ 3.2 billion and last more than two decades to track the health of

100,000 U. S. children from before birth to age 21 will be launched in January, U. S. health officials said on Friday.

Officials from the U. S. government's National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that affect later development, with the goal of learning new ways to treat or prevent illness.

The study will examine hereditary and environmental factors such as exposure to certain chemicals that affect health.

Researchers will collect genetic and biological samples from people in the study as well as samples from the homes of the women and their babies including air, water, dust and materials used to construct their residences, the NIH said.

Officials said more than $ 200 million has been spent already and the study is projected to cost $ 3.2 billion.

"We anticipate that in the long term, what we learn from the study will result in a significant savings in the nation's health care costs," Dr. Duane Alexander, who heads the NIH 's Eunice Kennedy Shriver National Institute of Child Health and Human Development, told reporters.

The study will begin in January when the University of North Carolina and the Mount Sinai School of Medicine in New York start signing up pregnant women whose babies will then be followed to age 21.

Some of the early findings will be about factors behind pre-term birth, which has become more common in recent years, according to Dr. Peter Scheidt of the NIH, who heads the study.

The people taking part will be from rural, urban and suburban areas, from all in- come and educational levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to______.

A．conduct research

B．track public health

C．prevent or treat illness

D．speed up development

提问人：网友softtesting 发布时间：2022-01-07

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第2题

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第3题

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第4题

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第5题

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第6题

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As part of an international co operative plan to protect and study panda, the co-operation between Chengdu and Atlanta has finally come to an agreement after three years of discussion. And the research fund of $ 5 million raised by Atlanta's zoo has also contributed to the co-operation.

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第7题

Section B – TWO questions ONLY to be attempted（a) You are an audit manager in Rose & C

Section B – TWO questions ONLY to be attempted

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Required:

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第8题

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A．examine

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第10题

U. S. Life Expectancy Hits New HighLife expectancy rates in the United States are at an al

U. S. Life Expectancy Hits New High

Life expectancy rates in the United States are at an all- time high, with people born in 2005 projected to live for nearly 78 years, a new federal study finds.

The finding reflects a continuing trend of increasing life expectancy that began in 1955, when the average American lived to be 69.6 years old. By 1995, life expectancy was 75.8 years, and by 2005, it had risen to 77.9 years, according to the report released Wednesday.

"This is good news," said report co - author Donna Hoyert, a health scientist at the National Center for Health Statistics. "It's even better news that it is a continuation of trends, so it is a long period of continuing improvement. "

Despite the upward trend, the United States still has a lower life expectancy than some 40 other countries, according to the U. S. Census (人口普查) Bureau. The country with the longest life expectancy is Andorra at 83.5 years, followed by Japan, Macau, San Marino and Singapore.

Much of the increase owes to declining death rates from the three leading causes of death in the country - heart disease, cancer and stroke.

In addition, in 2005, the U. S. death rate dropped to an all -time low of less than 800 deaths per 100,000.

Dr. David Katz, director of the Prevention Research Center at Yale University School of Medicine, said, "News that life expectancy is increasing is, of course, good. But the evidence we have suggests that there is more chronic disease than ever in the U. S."

Adding years to life is a good thing, Katz said. "But adding vital life to years is at least equally important. If we care about living well, and not just longer, we still have our work cut out for us," he said.

Since 1955, life expectancy rates in the U. S. have

A．moved up and down.

B．been declining.

C．remained steady.

D．been on the rise.

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第11题

根据下列材料请回答 37～41 题：U.S.Life Expectancy Hits New HighLife expectancy rates in the

根据下列材料请回答 37～41 题：U.S.Life Expectancy Hits New High

Life expectancy rates in the United States are at an all—time high，with people born in 2005 projected to live for nearly 78 years，a new federal study finds.

The finding reflects a continuing trend of increasing life expectancy that began in1955.when the average American lived to be 59.6 years old.By 1995，life expectancy was 75.8 years，and by 2005，it had risen to 77.9 years，according to the report released Wednesday.

“This is good news，”said report co—author Donna Hoyert，a health scientist at the National Center for Health Statistics.“It's even better news that it is a continuation of trends，so it is a long period of continuing improvement.”

Despite the upward trend，the United States still has a lower life expectancy than some 40 other countries，according to the U.S.Census(人口普查)Bureau.the country with the longest life expectancy is Andorra at 83.5 years，followed by Japan，Macau，San Marino and Singapore.

Much of the increase owes to declining death rates from the three leading causes of death in the country—heart disease.6an'ceF arid stroke.

In addition，in 2005，the U.S.death rate dropped to an all—time low of less than 800 deaths per 1 00,000.

Dr.David Katz，director of the Prevention Research Center at Yale University School of Medicine，said，“News that life expectancy is increasing is，of course，good.But the evidence we have suggests that there is more chronic disease than ever in the U.S.”

Adding years to life is a good thing，Katz said.“But adding vital life to years is at least equally important.If we care about living well，and not just longer，we still have our work cut out for U.S.” he said.

第37题：Since 1955，life expectancy rates in the U.S.have

A．moved up and down.

B．been declining.

C．been on the rise.

D．remained steady.

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