题目内容
（请给出正确答案）
39 What did the patient do on that particular night？
A He squeezed and let go his wife's hand.
B He held up one of his fingers.
C He stuck out his tongue.
D All of the above.
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更多“39 What did the patient do on that particular night？A He squeezed and let go his wife's ha”相关的问题
A、consciously
B、unconsciously
C、clumsily
D、conscientiously
A lived on
B depended on
C believed in
D joined in
They said obese(肥胖的)employees had higher health-care costs，but lowered those expenses by exercising just a couple of times a week-without even losing any weight.
Feifei Wang and colleagues at the University of Michigan studied 23，500 workers at General Motors.
They estimated that getting the most sedentary(惯于久坐的)obese workers to exercise would have saved about$790，000 a year，or about 1.5 percent of health—care costs for the whole group.Company—wide.the potential savings could reach$7 1 million per year，they reported in the Journal of Occupational and Environmental Medicine
Of the whole group of workers.about 30 percent were of normal weight，45 percent were overweight(超重的)，and 25 percent were obese.Annual health-care costs averaged$2，200 for normal weight，$2，400 for the overweight，and$2，700 for obese employees.
But among workers who did no exercise，health—care costs went up by at least$100 a year，and were$3.000
But adding two or more days of light exercise——at least 20 minutes of exercise or work hard enough to increase heart rate and breathing——lowered costs by on average$500 per employee a year，the researchers found.
“This indicates that physical activity behavior. could reduce at least some of the harmful effects of excess body fat，and in consequence，help lower the health-care costs，”Wang and colleagues wrote.
第11题：How can employees help lower the health-care costs？
A．By taking more rest．
B．By eating less．
C．By exercising a little bit．
D．By saving more money．
Cancer cells are thought to produce chemicals with unusual odors(气味).Researchers think dogs have the ability to smell these odors,even in very small amounts,in urine(尿).The sense of smell in dogs is thousands of times better than in humans.
The study follows reports of cases where,for example,a dog showed great interest in a growth on the let of its owner.The mole(痣)was later found to be skin cancer.
Carolyn Willis led a team of researchers at Amersham Hospital in England.They trained different kinds of dogs for the experiment.The study involved urine collected from bladder cancer patients,from people with other diseases and from healthy people.
Each dog was tested eight times.In each test there were seven samples for the dogs to smell.The dog was supposed to signal the one from a bladder cancer patient by lying down next to it.
Two cocker spaniels(短腿长毛垂耳小猎犬)were correct fifty-six percent of the time.But the scientists reported an average success rate of forty-one percent.
As a group,the study found that the dogs chose the correct sample twenty-two out of fifyt-four times.That is almost three times more often than would be expected by chance alone.
The British Medical Journal published the research.In all,thirty-six bladder cancer patients and one hundred and eight other people took part.
During training,all the dogs reportedly even identified a cancer in a person who had tested healthy before the study.Doctors found a growth on the person’s right kidney(肾).
Bladder cancer is the ninth most common cancer worldwide.The International Agency for Research on Cancer says this disease kills more than one hundred thousand people each year.Doctors say cigarette smoking is the leading cause of bladder cancer.
第6题：The experiment was conducted in a
A．private home.
B．training school.
C．hospital.
D．police station.
A Right B Wrong C Not mentioned
A parents' tolerance.
B housing problems.
C unwillingness to get married
D cultural traditions.
Ashe is a well-known figure in Britain.
Bshe got breast cancer some time ago
Cshe has kept a private diary about her disease
Dshe thinks highly of Cancer Chat.
Importance of Children's Oral Health
February is National Children's Dental (牙齿的)Health Month, but in children good oral care is critical every day. The first comprehensive study on the nation's oral health, released recently by the Office of the U.S. Surgeon General, calls dental and oral diseases a "silent epidemic (流行病)," even in children. The report states that more than 51 million school hours are lost each year to dental-related illness. In fact, a recent study pointed to dental care as the most common unmet health need among American children.
To help counter this, the American Academy of Periodontology (牙周病学) (AAP) is launching an effort to educate children and parents about the prevention of dental diseases in children.
"This is important because oral problems can impact self-esteem for children and lead to problems of eating, speaking and attending to learning," said Michael McGuire, president of the AAP.
Common dental problems seen in children are cavities (龋洞) and gingivitis (龈牙), which are found in the majority of U.S. children. "When these problems are not caught early and treated, they can develop into more severe problems and cause unnecessary suffering," said McGuire "However, much of the time, oral problems are avoidable problems."
In the Rio Grande Valley in Texas, a group of more than 120 dentists volunteers to deliver dental care to thousands of low-income children each year with its Mobile Dental Unit that travels from school to school.
"According to the Surgeon General's Report, about 37 percent of children have not had a dental visit before starting school," said McGuire. "When children don't see dentists they miss the opportunity to have problems caught early before they develop into larger, more expensive problems to treat, and parents miss the opportunity to learn how to promote good oral habits in their children."
16 Only in February should attention be paid to children's oral health
A Right B Wrong C Not mentioned
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