根据以下材料,回答题U.S. to Start $3.2 Billion Child Health Study in JanuaryA study that wi

第1题

根据以下材料，回答题HighwaysWith the increase in auto production， private turnpike （收费公

根据以下材料，回答题

Highways

With the increase in auto production， private turnpike （收费公路） companies under local authorities began to spring up， and by 1921 there were 387，000 miles Of paved roads. At that time，

there were no national standards for size， weight restrictions， or weight of trucks. During the World War I， roads throughout the country were nearly destroyed by the weight of trucks. When General Eisenhower returned from Germany in 1919， he noted: "The old convoy （车队） had started me thinking about good， two-lane highways， but Germany"s Autobahn or motorway had made me see the wisdom of broader ribbons across the land."

The interstate highway system was finally started in 1956. To build its 44，000-mile web of highways， bridges， and tunnels， hundreds of unique engineering designs and solutions had to be worked out. Considering the many geographic features of the country such as mountains， steep grades， wetlands， rivers， deserts and plains， innovative designs of roadways began to weave their way across the country， forever altering the face of America.

Today， the interstate system links every major city in the U.S.， and the U.S. with Canada and Mexico. Built with safety in mind， the highways have wide lanes and shoulders， dividing medians，or barriers， long entry and exit lanes， curves engineered for safe turns， and limited access. The death rate on highways is half that of all other U.S. roads （0.86 deaths per 100 million passenger miles compared to 1.99 deaths per 100 million on all other roads）.

By opening the North American continent， highways have enabled consumer goods and services to reach people in remote and rural areas of the country， spurred the growth of suburbs，and provided people with greater options in terms of jobs， access to cultural program， health care，and other benefits. Above all， the interstate system provides individuals with what they cherish most: personal freedom of mobility.

The interstate system has been an essential element of the nation"s economic growth in terms of shipping and job creation: more than 75 percent of the nation"s freight deliveries arrive by truck;and most products that arrive by rail or air use interstates for the last leg of the journey by vehicle.

Not only has the highway system affected the American economy by providing shipping routes， it has led to the growth of spin-off industries like service stations， motels， restaurants， and shopping centers. It has allowed the relocation of manufacturing plants and other industries from urban areas to rural.

National standards for paved roads were in place by 1921. 查看材料

A.Right

B.Wrong

C.Not mentioned

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第2题

根据以下材料，回答题The Truth of American Health CareMost people would be impressed by the

根据以下材料，回答题

The Truth of American Health Care

Most people would be impressed by the high quality of medicine available to most Americans.

There is a lot of specialization， a great deal of attention to the individual， a vast amount of advanced technical equipment， and intense effort not to make mistakes because of the financial risk which doctors and hospitals must face in the courts if they handle things badly.

But the Americans are in a mess. The problem is the way in which health care is organized and financed. Contrary to public belief， it is not just a free competition system. The private system has been joined a large public system， because private care was simply not looking after the less fortunate and the elderly.

But even with this huge public part of the system， which this year will eat up 84.5 billion dollars——more than 10 percent of the U.S. budget——large numbers of Americans are left out.

These include about half the 11 million unemployed and those who fail to meet the strict limits onincome fixed by a government trying to make savings where it can.

The basic problem， however， is that there is no central control over the health system. There is no limit to what doctors and hospitals charge for their services， other than what the public is able to pay. The number of doctors has shot up and prices have climbed. When faced with toothache， a sick child， or a heart attack， all the unfortunate person concerned can do is pay up.

Two-thirds of the population are covered by medical insurance. Doctors charge as much as they want knowing that the insurance company will pay the bill.

The medical profession has as a result become America"s new big businessmen. The average income of doctors has now reached $100，000 a year. With such vast incomes the tall in the doctor"s surgery is as likely to be about the doctor"s latest financial deal， as about whether the minor operation he is recommending at several thousand dollars is entirely necessary.

The rising cost of medicine in the U.S.A. is among the most worrying problem facing the country.

In 1981 the country"s health cost climbed 15.9 percent——about twice as fast as prices in general.

In the U.S. patients can expect， in medical treatment，__________. 查看材料

A.occasional mistakes by careless doctors

B.a great deal of personal attention

C.low charge by doctors and hospitals

D.stacking nurses and bad services

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第3题

根据下面材料，回答题。 U.S. to Start $3.2 Billion Chiltd Health Study in JanuaryA study t

根据下面材料，回答题。

U.S. to Start $3.2 Billion Chiltd Health Study in January

A study that will cost $3.2 billion and last more than two decades to track the health of100,000 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&39;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&39;s health care costs," Dr. Duane Alexander, who heads the NIH&39;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 income and educational levels and from all racial groups, the NIH said.

The aim of the study is to find new ways to __________. 查看材料

A.conduct research

B.track public health

C.prevent or treat illness

D.speed up development

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第4题

根据以下资料。回答题。 2011年，陕西农村沼气池产气总量同比增长：

根据以下资料。回答题。

根据以下资料。回答题。 2011年，陕西农村沼气池产气总量同比增长：根据以下资料。回答题。 2011 2011年，陕西农村沼气池产气总量同比增长：查看材料