单选题Which of the following is CORRECT about employment this year?A 3/4 percent American workers are potential applicants.B 1.3 million jobs were created last year.C 40 percent of companies will take on part-time staff.D The service sector does not contribu

The economy of the United states after 1952 was the econnomy of a well-fed,almost fully employed people. Despit occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical year of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national output was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day ,or about twenty-five million dollars every hour , all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them . Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of the mid-1920’s . As farmer’s shre of their products declined , marketing costs rose. But there were , among the observers of the national economy, a few who were not as confident as the majority . Those few seemed to fear that the boom could not last and would eventually lead to the oppsite-depression.
It can be inferred the national from the passage that most people in the United States in 1955 viewed the national economy with an air of ____ ____.

a. confidence b. confusion c. disappointment d. suspicion

The economy of the United states after 1952 was the econnomy of a well-fed,almost fully employed people. Despit occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical year of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national output was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day ,or about twenty-five million dollars every hour , all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them . Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of the mid-1920’s . As farmer’s shre of their products declined , marketing costs rose. But there were , among the observers of the national economy, a few who were not as confident as the majority . Those few seemed to fear that the boom could not last and would eventually lead to the oppsite-depression.
Which of the following were LEAST satisfied with the national economy in the 1950’s?

a. Economists b. Frmaers c. Politicians d. Steelworkers

Text 4 Many people talked of the 288,000 new jobs the Labor Department reported for June,along with the drop in the unemployment rate to 6.1 percent,as good news.And they were right.For now it appears the economy is creating jobs at a decent pace.We still have a long way to go to get back to full employment,but at least we are now finally moving forward at a faster pace.However,there is another important part of the jobs picture that was largely overlooked.There was a big jump in the number of people who report voluntarily working part-time.This figure is now 830,000（4.4 percent）above its year ago level.Before explaining the connection to the Obamacare,it is worth making an important distinction.Many people who work part-time jobs actually want full-time jobs.They take part-time work because this is all they can get.An increase in involuntary part-time work is evidence of weakness in the labor market and it means that many people will be having a very hard time making ends meet.There was an increase in involuntary part-time in June,but the general direction has been down.Involuntary part-time employment is still far higher than before the recession,but it is down by 640,000（7.9percent）from its year ago level.We know the difference between voluntary and involuntary part-time employment because people tell us.The survey used by the Labor Department asks people if they worked less than 35 hours in the reference week.If the answer is“yes”,they are classified as working part-time.The survey then asks whether they worked less than 35 hours in that week because they wanted to work less than full time or because they had no choice.They are only classified as voluntary part-time workers if they tell the survey taker they chose to work less than 35 hours a week.The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment.For many people,especially those with serious health conditions or family members with serious health conditions,before Obamacare the only way to get insurance was through a job that provided health insurance.However,Obamacare has allowed more than 12 million people to either get insurance through Medicaid or the exchanges.These are people who may previously have felt the need to get a full-time job that provided insurance in order to cover themselves and their families.With Obamacare there is no longer a link between employment and insurance.
The text mainly discusses____

A.employment in the US
B.parttimer classification
C.insurance through Medicaid
D.Obamacare's trouble

Text 4 Many people talked of the 288,000 new jobs the Labor Department reported for June,along with the drop in the unemployment rate to 6.1 percent,as good news.And they were right.For now it appears the economy is creating jobs at a decent pace.We still have a long way to go to get back to full employment,but at least we are now finally moving forward at a faster pace.However,there is another important part of the jobs picture that was largely overlooked.There was a big jump in the number of people who report voluntarily working part-time.This figure is now 830,000（4.4 percent）above its year ago level.Before explaining the connection to the Obamacare,it is worth making an important distinction.Many people who work part-time jobs actually want full-time jobs.They take part-time work because this is all they can get.An increase in involuntary part-time work is evidence of weakness in the labor market and it means that many people will be having a very hard time making ends meet.There was an increase in involuntary part-time in June,but the general direction has been down.Involuntary part-time employment is still far higher than before the recession,but it is down by 640,000（7.9percent）from its year ago level.We know the difference between voluntary and involuntary part-time employment because people tell us.The survey used by the Labor Department asks people if they worked less than 35 hours in the reference week.If the answer is“yes”,they are classified as working part-time.The survey then asks whether they worked less than 35 hours in that week because they wanted to work less than full time or because they had no choice.They are only classified as voluntary part-time workers if they tell the survey taker they chose to work less than 35 hours a week.The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment.For many people,especially those with serious health conditions or family members with serious health conditions,before Obamacare the only way to get insurance was through a job that provided health insurance.However,Obamacare has allowed more than 12 million people to either get insurance through Medicaid or the exchanges.These are people who may previously have felt the need to get a full-time job that provided insurance in order to cover themselves and their families.With Obamacare there is no longer a link between employment and insurance.
It can be learned that with Obamacare,____

A.it is no longer easy for parttimers to get insurance
B.employment is no longer a precondition to get insurance
C.it is still challenging to get insurance for family members
D.fulltime employment is still essential for insurance

Last year, 33 percent of the____worked in secondary industries and 48 percent worked in the tertiary sector.

A.populate
B.population
C.popularize
D.popular

共用题干
Is There a Way to Keep the Britain's Economy Growing
In today's knowledge economy,nations survive on the things they do best. The Japanese design electronics while Germens export engineering techniques.The French serve the best food and Americans make computers.
Britain specializes in the gift of talking.The nation doesn't manufacture much of anything.
But it has lawyers,stylists and business consultants who earn their living from talk,talk and more talk. The World Foundation think tank says the UK's four iconic（标志性的）jobs today are not scientists,engineers,teachers and nurses.Instead,they're hairdressers,celebrities,management consultants and managers .But can all this talking keep the British economy going?The
British government thinks it can.
Although the country's trade deficit was more than￡60 billion in 2006,UK's largest in the postwar period,officials say the country has nothing to worry about.In fact,Britain does have a world-class pharmaceutical（制药的）industry , and it still makes a small sum from selling arms abroad. It also trades services-accountancy,insurance, banking and advertising.The government believes Britain is on the cutting edge of the knowledge economy.After all,the country of
Shakespeare and Wordsworth has a literary tradition of which to be proud,Rock“n”roll is an
English language medium,and there are billions to be made by their cutting-edge bands.In other words,the creative economy has plenty of strength to carry the British economy.
However,creative industries account for only about 4 percent of UK's exports of goods and services .The industries are finding it hard to make a profit,according to a report of the National
Endowment for Science,Technology and the Arts .The report shows only 38 percent of British companies were engaged in“innovation activities”,3 percentage points below the EU average and well below Germany(61 percent)and Sweden(47 percent).
In fact,it might be better to call Britain a“servant”economy-there are at least 4 million people“in service”.The majority of the population are employed by the rich to cook,clean,and take care of their children.Many graduates are even doing menial jobs for which they do not need a degree.Most employment growth has been,and will continue to be,at the low-skill end of the service sector-in shops,bars,hotels,domestic service and in nursing and care homes.

Which of the following is true about the creative industries in Britain?
A:.They contribute a lot to the country's trade deficit.
B:.They make Britain on the cutting edge of the knowledge economy.
C:.They can't make a profit out of their innovation activities.
D:.They are not doing as well as those in other European nations.

共用题干
第一篇

Exercise Lowers Employers' Health Costs

Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit,researchers reported on Friday.
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一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$7.1million 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 a year for obese employees who were sedentary.
But adding two or more days of light exercise一at least 20 minutes of exercise or work
hard enough to increase heart rate and breathing一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.

For which group of the workers were the health-care costs the highest?
A:The employees of normal weight.
B:The overweight employees.
C:The obese employees.
D:The sedentary obese employees.

共用题干
第一篇

Exercise Lowers Employers' Health Costs

Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit,researchers reported on Friday.
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一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$7.1million 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 a year for obese employees who were sedentary.
But adding two or more days of light exercise一at least 20 minutes of exercise or work
hard enough to increase heart rate and breathing一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.

How many workers in General Motors were NOT of normal weight?
A:Seventy percent'
B:Thirty percent.
C:Forty-five percent.
D:Twenty-five percent.

The economy of the United states after 1952 was the econnomy of a well-fed,almost fully employed people. Despit occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical year of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national output was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day ,or about twenty-five million dollars every hour , all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them . Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of the mid-1920’s . As farmer’s shre of their products declined , marketing costs rose. But there were , among the observers of the national economy, a few who were not as confident as the majority . Those few seemed to fear that the boom could not last and would eventually lead to the oppsite-depression.
In Line 3, the word “boom” could best be replaced by__ ___.

a. nearby explosion b. thunderous noise
c. general public support d. rapid economic growth

Text 4 Many people talked of the 288,000 new jobs the Labor Department reported for June,along with the drop in the unemployment rate to 6.1 percent,as good news.And they were right.For now it appears the economy is creating jobs at a decent pace.We still have a long way to go to get back to full employment,but at least we are now finally moving forward at a faster pace.However,there is another important part of the jobs picture that was largely overlooked.There was a big jump in the number of people who report voluntarily working part-time.This figure is now 830,000（4.4 percent）above its year ago level.Before explaining the connection to the Obamacare,it is worth making an important distinction.Many people who work part-time jobs actually want full-time jobs.They take part-time work because this is all they can get.An increase in involuntary part-time work is evidence of weakness in the labor market and it means that many people will be having a very hard time making ends meet.There was an increase in involuntary part-time in June,but the general direction has been down.Involuntary part-time employment is still far higher than before the recession,but it is down by 640,000（7.9percent）from its year ago level.We know the difference between voluntary and involuntary part-time employment because people tell us.The survey used by the Labor Department asks people if they worked less than 35 hours in the reference week.If the answer is“yes”,they are classified as working part-time.The survey then asks whether they worked less than 35 hours in that week because they wanted to work less than full time or because they had no choice.They are only classified as voluntary part-time workers if they tell the survey taker they chose to work less than 35 hours a week.The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment.For many people,especially those with serious health conditions or family members with serious health conditions,before Obamacare the only way to get insurance was through a job that provided health insurance.However,Obamacare has allowed more than 12 million people to either get insurance through Medicaid or the exchanges.These are people who may previously have felt the need to get a full-time job that provided insurance in order to cover themselves and their families.With Obamacare there is no longer a link between employment and insurance.
Which part of the jobs picture was neglected?

A.The prospect of a thriving job market.
B.The increase of voluntary parttime jobs.
C.The possibility of full employment.
D.The acceleration of job creation.

Text 4 Many people talked of the 288,000 new jobs the Labor Department reported for June,along with the drop in the unemployment rate to 6.1 percent,as good news.And they were right.For now it appears the economy is creating jobs at a decent pace.We still have a long way to go to get back to full employment,but at least we are now finally moving forward at a faster pace.However,there is another important part of the jobs picture that was largely overlooked.There was a big jump in the number of people who report voluntarily working part-time.This figure is now 830,000（4.4 percent）above its year ago level.Before explaining the connection to the Obamacare,it is worth making an important distinction.Many people who work part-time jobs actually want full-time jobs.They take part-time work because this is all they can get.An increase in involuntary part-time work is evidence of weakness in the labor market and it means that many people will be having a very hard time making ends meet.There was an increase in involuntary part-time in June,but the general direction has been down.Involuntary part-time employment is still far higher than before the recession,but it is down by 640,000（7.9percent）from its year ago level.We know the difference between voluntary and involuntary part-time employment because people tell us.The survey used by the Labor Department asks people if they worked less than 35 hours in the reference week.If the answer is“yes”,they are classified as working part-time.The survey then asks whether they worked less than 35 hours in that week because they wanted to work less than full time or because they had no choice.They are only classified as voluntary part-time workers if they tell the survey taker they chose to work less than 35 hours a week.The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment.For many people,especially those with serious health conditions or family members with serious health conditions,before Obamacare the only way to get insurance was through a job that provided health insurance.However,Obamacare has allowed more than 12 million people to either get insurance through Medicaid or the exchanges.These are people who may previously have felt the need to get a full-time job that provided insurance in order to cover themselves and their families.With Obamacare there is no longer a link between employment and insurance.
Involuntary parttime employment in the US_____

A.is harder to acquire than one year ago
B.shows a general tendency of decline
C.satisfies the real need of the jobless
D.is lower than before the recession

Text 4 Many people talked of the 288,000 new jobs the Labor Department reported for June,along with the drop in the unemployment rate to 6.1 percent,as good news.And they were right.For now it appears the economy is creating jobs at a decent pace.We still have a long way to go to get back to full employment,but at least we are now finally moving forward at a faster pace.However,there is another important part of the jobs picture that was largely overlooked.There was a big jump in the number of people who report voluntarily working part-time.This figure is now 830,000（4.4 percent）above its year ago level.Before explaining the connection to the Obamacare,it is worth making an important distinction.Many people who work part-time jobs actually want full-time jobs.They take part-time work because this is all they can get.An increase in involuntary part-time work is evidence of weakness in the labor market and it means that many people will be having a very hard time making ends meet.There was an increase in involuntary part-time in June,but the general direction has been down.Involuntary part-time employment is still far higher than before the recession,but it is down by 640,000（7.9percent）from its year ago level.We know the difference between voluntary and involuntary part-time employment because people tell us.The survey used by the Labor Department asks people if they worked less than 35 hours in the reference week.If the answer is“yes”,they are classified as working part-time.The survey then asks whether they worked less than 35 hours in that week because they wanted to work less than full time or because they had no choice.They are only classified as voluntary part-time workers if they tell the survey taker they chose to work less than 35 hours a week.The issue of voluntary part-time relates to Obamacare because one of the main purposes was to allow people to get insurance outside of employment.For many people,especially those with serious health conditions or family members with serious health conditions,before Obamacare the only way to get insurance was through a job that provided health insurance.However,Obamacare has allowed more than 12 million people to either get insurance through Medicaid or the exchanges.These are people who may previously have felt the need to get a full-time job that provided insurance in order to cover themselves and their families.With Obamacare there is no longer a link between employment and insurance.
Many people work parttime because they_____

A.prefer parttime jobs to fulltime jobs
B.feel that is enough to make ends meet
C.cannot get their hands on fulltime jobs
D.haven't seen the weakness of the market

共用题干
Is There a Way to Keep the Britain's Economy Growing
In today's knowledge economy,nations survive on the things they do best. The Japanese design electronics while Germens export engineering techniques.The French serve the best food and Americans make computers.
Britain specializes in the gift of talking.The nation doesn't manufacture much of anything.
But it has lawyers,stylists and business consultants who earn their living from talk,talk and more talk. The World Foundation think tank says the UK's four iconic（标志性的）jobs today are not scientists,engineers,teachers and nurses.Instead,they're hairdressers,celebrities,management consultants and managers .But can all this talking keep the British economy going?The
British government thinks it can.
Although the country's trade deficit was more than￡60 billion in 2006,UK's largest in the postwar period,officials say the country has nothing to worry about.In fact,Britain does have a world-class pharmaceutical（制药的）industry , and it still makes a small sum from selling arms abroad. It also trades services-accountancy,insurance, banking and advertising.The government believes Britain is on the cutting edge of the knowledge economy.After all,the country of
Shakespeare and Wordsworth has a literary tradition of which to be proud,Rock“n”roll is an
English language medium,and there are billions to be made by their cutting-edge bands.In other words,the creative economy has plenty of strength to carry the British economy.
However,creative industries account for only about 4 percent of UK's exports of goods and services .The industries are finding it hard to make a profit,according to a report of the National
Endowment for Science,Technology and the Arts .The report shows only 38 percent of British companies were engaged in“innovation activities”,3 percentage points below the EU average and well below Germany(61 percent)and Sweden(47 percent).
In fact,it might be better to call Britain a“servant”economy-there are at least 4 million people“in service”.The majority of the population are employed by the rich to cook,clean,and take care of their children.Many graduates are even doing menial jobs for which they do not need a degree.Most employment growth has been,and will continue to be,at the low-skill end of the service sector-in shops,bars,hotels,domestic service and in nursing and care homes.

According to the World Foundation think tank,one of the iconic jobs in Britain today is
A: law makers
B: home servants
C: business consultants
D: school teachers

共用题干
第一篇

Exercise Lowers Employers' Health Costs

Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit,researchers reported on Friday.
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一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$7.1million 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 a year for obese employees who were sedentary.
But adding two or more days of light exercise一at least 20 minutes of exercise or work
hard enough to increase heart rate and breathing一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.

By encouraging its employees to exercise General Motors could save
A:$790,000 per year.
B:$7.1 million per year:
C:$3,000 per year.
D:$7,300 per year.

共用题干
第一篇

Exercise Lowers Employers' Health Costs

Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit,researchers reported on Friday.
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一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$7.1million 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 a year for obese employees who were sedentary.
But adding two or more days of light exercise一at least 20 minutes of exercise or work
hard enough to increase heart rate and breathing一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.

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.

共用题干
第一篇

Exercise Lowers Employers' Health Costs

Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit,researchers reported on Friday.
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一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$7.1million 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 a year for obese employees who were sedentary.
But adding two or more days of light exercise一at least 20 minutes of exercise or work
hard enough to increase heart rate and breathing一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.

How often should the employees exercise to help lower the health-care costs?
A:At least seven days a week.
B:At least twenty minutes a week.
C:At least twice a week.
D:At least once a week.