2、国际上公认的早期乳腺癌筛查的有效手段是（） An internationally recognized effective mean of early breast cancer screening is（）A．B超 B-mode ultrasoundB．临床触诊 Clinical palpationC．乳腺钼靶 MammographyD．MRI
2、国际上公认的早期乳腺癌筛查的有效手段是（） An internationally recognized effective mean of early breast cancer screening is（）
A．B超 B-mode ultrasound
B．临床触诊 Clinical palpation
C．乳腺钼靶 Mammography
D．MRI
参考答案和解析
乳腺钼靶Ｘ线摄影
相关考题：
制定某种肿瘤的筛查计划,需要满足的条件有( ) A、该肿瘤是当地主要的健康问题，危害严重B、该肿瘤的疾病自然史清楚，具有可识别的临床前期C、具有合乎伦理、顺应性好、安全有效的筛查方法D、对早期病变有行之有效的治疗手段E、筛查、诊断及治疗的成本应符合成本效益原则
共用题干Breast Cancer Deaths Record LowThe number of women dying from breast cancer has fallen to a record low by dropping under 12,000 a year for the first time since records began.The Cancer Research UK data showed that 11,990 women died in the UK in 2007.The previous lowest figure had been recorded in 1 97 1一 the year records began一after which it rose steadily year by year until the late 1980s.Professor Peter Johnson,Cancer Research UK's chief clinician,said,"It's incredibly encouraging to see fewer women dying from breast cancer now than at any time in the last 40 years,despite breast cancer being diagnosed more often.""Research has played a crucial role in this progress,leading to improved treatments and better management for women with the disease.""The introduction of the NHS（国民保健制度）breast screening program has also contributed as the earlier cancer is diagnosed,women are more likely to survive."Breast cancer is now the nost common cancer in the UK with 45,500 women every year diagnosed with the disease一a 50% rise in 25 years.The number of deaths peaked in 1989,when 15,625 women died.It then fell by between 200 and 400 deaths each year until 2004.There was a slight rise in 2005 and then two years of falls.Dr. Sarah Cant,policy manager at Breakthrough Breast Cancer,said,"It is great news that fewer women are dying from breast cancer and highlights the impact of improved treatments,breast screening and awareness of the disease.""However,there are still too many women affected and the incidence of the disease is increasing year byyear.,,The rising rate of breast cancer diagnosis has been put down to a variety of factors including obesity （肥胖）and alcohol consumption.11,990 women died from breast cancer in the UK in 2007.A:RightB:WrongC:Not mentioned
共用题干Breast Cancer Deaths Record LowThe number of women dying from breast cancer has fallen to a record low by dropping under 12,000 a year for the first time since records began.The Cancer Research UK data showed that 11,990 women died in the UK in 2007.The previous lowest figure had been recorded in 1 97 1一 the year records began一after which it rose steadily year by year until the late 1980s.Professor Peter Johnson,Cancer Research UK's chief clinician,said,"It's incredibly encouraging to see fewer women dying from breast cancer now than at any time in the last 40 years,despite breast cancer being diagnosed more often.""Research has played a crucial role in this progress,leading to improved treatments and better management for women with the disease.""The introduction of the NHS（国民保健制度）breast screening program has also contributed as the earlier cancer is diagnosed,women are more likely to survive."Breast cancer is now the nost common cancer in the UK with 45,500 women every year diagnosed with the disease一a 50% rise in 25 years.The number of deaths peaked in 1989,when 15,625 women died.It then fell by between 200 and 400 deaths each year until 2004.There was a slight rise in 2005 and then two years of falls.Dr. Sarah Cant,policy manager at Breakthrough Breast Cancer,said,"It is great news that fewer women are dying from breast cancer and highlights the impact of improved treatments,breast screening and awareness of the disease.""However,there are still too many women affected and the incidence of the disease is increasing year byyear.,,The rising rate of breast cancer diagnosis has been put down to a variety of factors including obesity （肥胖）and alcohol consumption.Obesity and alcohol consumption may also lead to some other diseases.A:RightB:WrongC:Not mentioned
共用题干第一篇A New Strategy to Overcome Breast CancerPost-menopausal（绝经后的）women who walk for an hour a day can cut their chance of breast cancer significantly,a study has suggested.The report,which followed 73,000 women for 17 years,found walking for at least seven hours a week lowered the risk of the disease.The American Cancer Society team said this was the first time reduced risk was specifically linked to walking.UK experts said it was more evidence that lifestyle influenced cancer risk.A recent poll for the charity Ramblers found a quarter of adults walk for no more than an hour a week, but being active is known to reduce the risk of a number of cancers.This study,,published in Cancer Epidemiology,Biomarkers&Prevention,followed 73,615 women out of 97,785 aged 50-74 who had been recruited by the American Cancer Society between 1992 and 1993,so it could monitor the incidence of cancer in the group.They were asked to complete questionnaires on their health and on how much time they were active and participating in activities such as walking , swimming and aerobics（有氧运动）and how much time they spent sitting,watching television or reading.They completed the same questionnaires at, two-year intervals between 1997 and 2009.Of the women,47%said walking was their only recreational activity.Those who walked for at least seven hours per week had a 14%lower risk of breast cancer compared to those who walked three or fewer hours per week.Dr.Alpa Patel,a senior epidemiologist at the American Cancer Society in Atianta Georgia,who led the study,said:"Given that more than 60% of women report some daily walking,promoting walking as a healthy leisure-time activity could be an effective strategy for increasing physical activity amongst post-menopausal women.We were pleased to find that without any other recreational activity,just walking one hour a day was associated with a lower risk of breast cancer in these women." " More strenuous（紧张的） and longer activities lowered the risk even more."Baroness Delyth Morgan,chief executive of Breast Cancer Campaign,said:"This study adds further evidence that our lifestyle choices can play a part in influencing the risk of breast cancer and even small changes incorporated into our normal day-to-day activity can make a difference."She added:"We know that the best weapon to overcoming breast cancer is the ability to stop it occurring in the first place.The challenge now is how we turn these findings into action and identify other sustainable lifestyle changes that will help us prevent breast cancer."It can be inferred from Dr.Alpa Patel's study that______.A:daily walking could cut the chance of breast cancerB:women have fewer chances of physical activityC:leisure-time activity is not associated with cancer riskD:walking is not recommended for women with breast cancer
共用题干第二篇 New U. S. Plan for Disease PreventionUrging Americans to take responsibility for their health,Health and Human Services Secretary Tommy Thompson on Tuesday launched a $15 million program to try to encourage communities to do more to prevent chronic diseases like heart disease,cancer and diabetes（糖尿病）.The initiative highlights the costs of chronic diseases一the leading causes of death in the United States一and outlines ways that people can prevent them,including better diet and increased exercise."In the United States today,7 of 10 deaths and the vast majority of serious illness, disability and health care costs are caused by chronic diseases,"the Health and Human Services department said in a statement.The causes are often behavioral一smoking,poor eating habits and a lack of exercise."I am convinced that preventing disease by promoting better health is a smart policy choice for our future,"Thompson told a conference held to launch the initiative."Our current health care system is not structured to deal with the rising costs of treating diseases that are largely preventable through changes in our lifestyle choices."Thompson said heart disease and strokes will cost the country more than $351 billion in 2003."These leading causes of death for men and women are largely preventable,yet we as a nation are not taking the steps necessary for us to lead healthier,longer lives,"he said.The $15 million is designed to go to communities to promote prevention,pushing for changes as simple as building sidewalks to encourage people to walk more.Daily exercise such as walking can prevent and even reverse heart disease and diabetes,and prevent cancer and strokes.The money will also go to community organizations,clinics and nutritionists who are being encouraged to work together to educate people at risk of diabetes about what they can do to prevent it and encourage more cancer screening.The American Cancer Society estimates that half of all cancers can be caught by screening, including Pap tests（巴 氏实验）for cervical（子宫颈的）cancer, mammograms（乳房X线照片）for breast cancer, colonoscopies（结肠镜检查）,and prostate（前列腺的）checks.If such cancers were all caught by early screening,the group estimates that the survival rate for cancer would rise to 95 percent. Early cancer screening can help reduce significantlyA:the death rates for all chronic diseases.B: the kinds of cancer attacking people.C:the incidence rate for cancer.D:the death rate for cancer.
共用题干第一篇A New Strategy to Overcome Breast CancerPost-menopausal（绝经后的）women who walk for an hour a day can cut their chance of breast cancer significantly,a study has suggested.The report,which followed 73,000 women for 17 years,found walking for at least seven hours a week lowered the risk of the disease.The American Cancer Society team said this was the first time reduced risk was specifically linked to walking.UK experts said it was more evidence that lifestyle influenced cancer risk.A recent poll for the charity Ramblers found a quarter of adults walk for no more than an hour a week, but being active is known to reduce the risk of a number of cancers.This study,,published in Cancer Epidemiology,Biomarkers&Prevention,followed 73,615 women out of 97,785 aged 50-74 who had been recruited by the American Cancer Society between 1992 and 1993,so it could monitor the incidence of cancer in the group.They were asked to complete questionnaires on their health and on how much time they were active and participating in activities such as walking , swimming and aerobics（有氧运动）and how much time they spent sitting,watching television or reading.They completed the same questionnaires at, two-year intervals between 1997 and 2009.Of the women,47%said walking was their only recreational activity.Those who walked for at least seven hours per week had a 14%lower risk of breast cancer compared to those who walked three or fewer hours per week.Dr.Alpa Patel,a senior epidemiologist at the American Cancer Society in Atianta Georgia,who led the study,said:"Given that more than 60% of women report some daily walking,promoting walking as a healthy leisure-time activity could be an effective strategy for increasing physical activity amongst post-menopausal women.We were pleased to find that without any other recreational activity,just walking one hour a day was associated with a lower risk of breast cancer in these women." " More strenuous（紧张的） and longer activities lowered the risk even more."Baroness Delyth Morgan,chief executive of Breast Cancer Campaign,said:"This study adds further evidence that our lifestyle choices can play a part in influencing the risk of breast cancer and even small changes incorporated into our normal day-to-day activity can make a difference."She added:"We know that the best weapon to overcoming breast cancer is the ability to stop it occurring in the first place.The challenge now is how we turn these findings into action and identify other sustainable lifestyle changes that will help us prevent breast cancer."Dr.Alpa Patel was______.A:chief editor of Cancer EpidemiologyB:chair of the American Cancer SocietyC:chief executive of Breast Cancer CampaignD:head of the survey study
共用题干第三篇A New Strategy to Overcome Breast CancerPost-menopausal（绝经后的）women who walk for an hour a day can cut their chance of breast cancersignificantly,a study has suggested.The report,which followed 73,000 women for 17 years,found walking for at least seven hours a week lowered the risk of the disease.The American Cancer Society team said this was the first time reduced risk was specifically linked to walking.UK experts said there was more evidence that lifestyle influenced cancer risk.A recent poll for the charity Ramblers found a quarter of adults walk for no more than an hour a week, but being active is known to reduce the risk of a number of cancers.This study,published in CancerEpidemiology,Biomarkers&Prevention,followed 73,615 women out of 97,785 aged 50-74 who had been recruited by the American Cancer Society between 1992 and 1993,so it could monitor the incidence of cancer in the group.They were asked to complete questionnaires on their health and on how much time they were active and participating in activities such as walking, swimming and aerobics（有氧运动）and how much time they spentsitting watching television or reading.They completed the same questionnaires at two-year intervals between 1997 and 2009.Of the women,47%said walking was their only recreational activity.Those who walked for at least seven hours per week had a 14%lower risk of breast cancer compared to those who walked three or fewer hours per week.Dr.Alpa Patel,a senior epidemiologist at the American Cancer Society in Atlanta,Georgia,who led the study,said:"Given that more than 60%of women report some daily walking,promoting walking as ahealthy leisure-time activity could be an effective strategy for increasing physical activity amongst post-menopausal women.We were pleased to find that without any other recreational activity,just walking one hour a day was associated with a lower risk of breast cancer in these women."" More strenuous（紧张的）and longer activities lowered the risk even more."Baroness Delyth Morgan,chief executive of Breast Cancer Campaign,said:"This study adds further evidence that our lifestyle choices can play a part in influencing the risk of breast cancer and even small changes incorporated into our normal day-to-day activity can make a difference."She added:"We know that the best weapon to overcoming breast cancer is the ability to stop it occurring in the first place.The challenge now is how we turn these findings into action and identify other sustainable lifestyle changes that will help us prevent breast cancer."Dr.Alpa Patel was______.A:chief editor of Cancer EpidemiologyB:chair of the American Cancer SocietyC:chief executive of Breast Cancer CampaignD:head of the survey study
共用题干New U. S. Plan for Disease PreventionUrging Americans to take responsibility for their health,Health and Human Services Secretary Tommy Thompson on Tuesday launched a$15 million program to try to encourage communities to do more to prevent chronic diseases like heart disease,cancer and diabetes（糖尿病）.The initiative highlights the costs of chronic diseases—the leading causes of death in the United States—and outlines ways that people can prevent them,including better diet and in-creased exercise.“In the United States today,7 of 10 deaths and the vast majority of serious illness,disability and health care costs are caused by chronic diseases,”the Health and Human Services Depart-ment said in a statement.The causes are often behavioral—smoking,poor eating habits and a lack of exercise.“I am convinced that preventing disease by promoting better health is a smart policy choice for our future,”Thompson told a conference held to launch the initiative.“Our current health care system is not structured to deal with the rising costs of treating dis-eases that are largely preventable through changes in our lifestyle choices.”Thompson said heart disease and strokes will cost the country more than $351 billion in 2003.“These leading causes of death for men and women are largely preventable,yet we as a na- tion are not taking the steps necessary for us to lead healthier,longer lives,”he said.The $15 million is designed to go to communities to promote prevention,pushing for chan-ges as simple as building sidewalks to encourage people to walk more.Daily exercise such as walking can prevent and even reverse heart disease and diabetes,and prevent cancer and strokes.The money will also go to community organizations,clinics and nutritionists who are being en-couraged to work together to educate people at risk of diabetes about what they can do to prevent it and encourage more cancer screening.The American Cancer Society estimates that half of all cancers can be caught by screening, including Pap tests（巴氏试验）for cervical cancer（宫颈癌）, mammograms for breast cancer, colonoscopies（结肠镜检查）, and prostate（前列腺的）checks.If such cancers were all caught by early screening,the group estimates that the survival rate for cancer would rise to 95 percent. Early cancer screening can help reduce significantly_________.A: the death rates for all chronic diseasesB: the kinds of cancer attacking peopleC:.the incidence rate for cancerD:.the death rate for cancer
共用题干Screen Test1 Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough,the disease can often be treated successfully.According to a survey published last year,2 1 countries have screening programs.Nine of them,including Australia,Canada,the US and Spain, screen women under 50.2 But the medical benefits of screening these younger women are controversial,partly because the radiation brings a small risk of inducing cancer. Also,younger women must be given higher doses of X-raysbecause their breast tissue is denser.3 Researchers at the Polytechnic University of Valencia analyzed the effect of screening more than 160,000 women at 11 local clinics.After estimating the women's cumulative dose of radiation,they used two models to calculate the number of extra cancers this would cause.4 The mathematical model recommended by Britain's National Radiological Protection Board (NRPB)predicted that the screening program would cause 36 cancers per 100,000 women,18 of them fatal.The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower figure of 20 cancers.5 The researchers argue that the level of radiation-induced cancers is"not very significant"compared to the far larger number of cancers that are discovered and treated.The Valencia program,they say,detects between 300 and 450 cases of breast cancer in every 100,000 women screened.6 But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45,because they would be exposed to less radiation.The results of their study,they suggest,could help"optimize the technique"for breast cancer screening.7 "There is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB.But he warns that the study should be interpreted with caution."On the basis of the current data,for every 10 cancers successfully detected and prevented there is a risk of causing one later in life.That'S why radiation exposure should be minimized in any screening program."Paragraph 4_________A:Harm Screening May Do to a Younger WomanB:Investigating the Effect of ScreeningC:Effects Predicted by Two Different ModelsD:Small Risk of Inducing Cancers From RadiationE:Treatment of CancersF:Factors That Trigger Cancers
共用题干Screen Test1 Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough,the disease can often be treated successfully.According to a survey published last year,2 1 countries have screening programs.Nine of them,including Australia,Canada,the US and Spain, screen women under 50.2 But the medical benefits of screening these younger women are controversial,partly because the radiation brings a small risk of inducing cancer. Also,younger women must be given higher doses of X-raysbecause their breast tissue is denser.3 Researchers at the Polytechnic University of Valencia analyzed the effect of screening more than 160,000 women at 11 local clinics.After estimating the women's cumulative dose of radiation,they used two models to calculate the number of extra cancers this would cause.4 The mathematical model recommended by Britain's National Radiological Protection Board (NRPB)predicted that the screening program would cause 36 cancers per 100,000 women,18 of them fatal.The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower figure of 20 cancers.5 The researchers argue that the level of radiation-induced cancers is"not very significant"compared to the far larger number of cancers that are discovered and treated.The Valencia program,they say,detects between 300 and 450 cases of breast cancer in every 100,000 women screened.6 But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45,because they would be exposed to less radiation.The results of their study,they suggest,could help"optimize the technique"for breast cancer screening.7 "There is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB.But he warns that the study should be interpreted with caution."On the basis of the current data,for every 10 cancers successfully detected and prevented there is a risk of causing one later in life.That'S why radiation exposure should be minimized in any screening program."Paragraph 2__________A:Harm Screening May Do to a Younger WomanB:Investigating the Effect of ScreeningC:Effects Predicted by Two Different ModelsD:Small Risk of Inducing Cancers From RadiationE:Treatment of CancersF:Factors That Trigger Cancers
共用题干Screen Test1 Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough,the disease can often be treated successfully.According to a survey published last year,2 1 countries have screening programs.Nine of them,including Australia,Canada,the US and Spain, screen women under 50.2 But the medical benefits of screening these younger women are controversial,partly because the radiation brings a small risk of inducing cancer. Also,younger women must be given higher doses of X-raysbecause their breast tissue is denser.3 Researchers at the Polytechnic University of Valencia analyzed the effect of screening more than 160,000 women at 11 local clinics.After estimating the women's cumulative dose of radiation,they used two models to calculate the number of extra cancers this would cause.4 The mathematical model recommended by Britain's National Radiological Protection Board (NRPB)predicted that the screening program would cause 36 cancers per 100,000 women,18 of them fatal.The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower figure of 20 cancers.5 The researchers argue that the level of radiation-induced cancers is"not very significant"compared to the far larger number of cancers that are discovered and treated.The Valencia program,they say,detects between 300 and 450 cases of breast cancer in every 100,000 women screened.6 But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45,because they would be exposed to less radiation.The results of their study,they suggest,could help"optimize the technique"for breast cancer screening.7 "There is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB.But he warns that the study should be interpreted with caution."On the basis of the current data,for every 10 cancers successfully detected and prevented there is a risk of causing one later in life.That'S why radiation exposure should be minimized in any screening program."Early discovery of breast cancer may________.A:be costlyB:harmfulC:save a lifeD:still open to debateE:reduce the risk of radiation triggering a cancerF:reduced to the minimum
共用题干Screen Test1 Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early enough,the disease can often be treated successfully.According to a survey published last year,2 1 countries have screening programs.Nine of them,including Australia,Canada,the US and Spain, screen women under 50.2 But the medical benefits of screening these younger women are controversial,partly because the radiation brings a small risk of inducing cancer. Also,younger women must be given higher doses of X-raysbecause their breast tissue is denser.3 Researchers at the Polytechnic University of Valencia analyzed the effect of screening more than 160,000 women at 11 local clinics.After estimating the women's cumulative dose of radiation,they used two models to calculate the number of extra cancers this would cause.4 The mathematical model recommended by Britain's National Radiological Protection Board (NRPB)predicted that the screening program would cause 36 cancers per 100,000 women,18 of them fatal.The model preferred by the UN Scientific Committee on the Effects of Atomic Radiation led to a lower figure of 20 cancers.5 The researchers argue that the level of radiation-induced cancers is"not very significant"compared to the far larger number of cancers that are discovered and treated.The Valencia program,they say,detects between 300 and 450 cases of breast cancer in every 100,000 women screened.6 But they point out that the risk of women contracting cancer from radiation could be reduced by between 40 and 80 percent if screening began at 50 instead of 45,because they would be exposed to less radiation.The results of their study,they suggest,could help"optimize the technique"for breast cancer screening.7 "There is a trade-off between the diagnostic benefits of breast screening and its risks," admits Michael Clark of the NRPB.But he warns that the study should be interpreted with caution."On the basis of the current data,for every 10 cancers successfully detected and prevented there is a risk of causing one later in life.That'S why radiation exposure should be minimized in any screening program."Radiation exposure should be_________.A:be costlyB:harmfulC:save a lifeD:still open to debateE:reduce the risk of radiation triggering a cancerF:reduced to the minimum
产前筛查是指（）A、应用生化、超声波等手段，在孕早期、孕中期对高危孕妇进行异常妊娠的筛查B、应用生化、超声波等手段，在孕中期、孕晚期对所有孕妇进行异常妊娠的筛查C、应用生化、超声波等手段，在孕早期、孕晚期对所有孕妇进行异常妊娠的筛查D、应用生化、超声波等手段，在孕早期、孕中期对所有孕妇进行异常妊娠的筛查
筛查试验应具备的要求包括（）。A、人群筛查的疾病应有可识别的早期临床症状和体征B、人群筛查的疾病应是当地重大公共卫生问题C、人群筛查试验一般要求对查出的早期病变有行之有效的治疗手段D、人群筛查试验一般要求筛查方法被筛查人群接受，且疾病自然史清楚E、人群筛查试验应廉价、快速和准确，正确区分出患者和可疑病例
单选题阅读理解：请根据短文内容，为每题确定l个最佳选项。 A New Strategy to Overcome Breast Cancer。 Post-menopausal（绝经后）women who walk for an hour a day can cut their chance of breast cancer significantly,a study has suggested. The report, which followed 73,000 women for 17 years,found walking for at least seven hours a week lowered the risk of the disease.The American Cancer Society team said this was the first time reduced risk was specifically linked to walking. UK experts said it was more evidence that lifestyle influenced cancer risk. A recent poll for the charity Ramblers a quarter of adults walk for no more than an hour a week,but being active is known to reduce the risk of a number of cancers.This study, published in Cancer Epidemiology,BiomarkersPrevention,followed 73.615 women out of 97,785 aged 50-74 who had been recruited by the American Cancer Society between 1992 and 1993,so it could monitor the incidence of cancer in the group. They were asked to complete questionnaires on their health and on how much time they were active and participating in activities such as walking,swimming and aerobics（有氧运动）and how much time they spent sitting watching television or reading.They completed the same questionnaires at two-year intervals between 1997 and 2009. Of the women,47% said walking was their only recreational activity.Those who walked for at least seven hours per week had a 14% lower risk of breast cancer compared to those who walked three or fewer hours per week. Dr. Alpa Patel, a senior epidemiologist at the American Cancer Society in Atlanta, Georgia, who led the study, said:”Given that more than 60% of women report some daily walking, promoting walking as a healthy leisure-time activity could be an effective strategy for increasing physical activity amongst post-menopausal women.We were pleased to find that without any other recreational activity, just walking one hour a day was associated with a lower risk of breast cancer in these women.””More strenuous（紧张的）and longer activities lowered the risk even more.” Baroness Delyth Morgan, chief executive of Breast Cancer Campaign,said:”This study adds further evidence that our lifestyle choices can play a part in influencing the risk of breast cancer and even small changes incorporate into our normal day-to-day activity can make a difference.” She added:”We know that the best weapon to overcoming breast cancer is the ability to stop it occurring in the first place. The challenge now is how we turn these findings into action and identify other sustainable lifestyle changes that will help us prevent breast cancer.”It can be inferred from Dr. Alpa Patel’s study that____.Awomen have fewer chances of physical activityBdaily walking could cut the chance of breast cancerCleisure-time activity is not associated with cancer riskDwalking is not recommended for women with breast cancer
单选题阅读理解：请根据短文内容，为每题确定l个最佳选项。 A New Strategy to Overcome Breast Cancer。 Post-menopausal（绝经后）women who walk for an hour a day can cut their chance of breast cancer significantly,a study has suggested. The report, which followed 73,000 women for 17 years,found walking for at least seven hours a week lowered the risk of the disease.The American Cancer Society team said this was the first time reduced risk was specifically linked to walking. UK experts said it was more evidence that lifestyle influenced cancer risk. A recent poll for the charity Ramblers a quarter of adults walk for no more than an hour a week,but being active is known to reduce the risk of a number of cancers.This study, published in Cancer Epidemiology,BiomarkersPrevention,followed 73.615 women out of 97,785 aged 50-74 who had been recruited by the American Cancer Society between 1992 and 1993,so it could monitor the incidence of cancer in the group. They were asked to complete questionnaires on their health and on how much time they were active and participating in activities such as walking,swimming and aerobics（有氧运动）and how much time they spent sitting watching television or reading.They completed the same questionnaires at two-year intervals between 1997 and 2009. Of the women,47% said walking was their only recreational activity.Those who walked for at least seven hours per week had a 14% lower risk of breast cancer compared to those who walked three or fewer hours per week. Dr. Alpa Patel, a senior epidemiologist at the American Cancer Society in Atlanta, Georgia, who led the study, said:”Given that more than 60% of women report some daily walking, promoting walking as a healthy leisure-time activity could be an effective strategy for increasing physical activity amongst post-menopausal women.We were pleased to find that without any other recreational activity, just walking one hour a day was associated with a lower risk of breast cancer in these women.””More strenuous（紧张的）and longer activities lowered the risk even more.” Baroness Delyth Morgan, chief executive of Breast Cancer Campaign,said:”This study adds further evidence that our lifestyle choices can play a part in influencing the risk of breast cancer and even small changes incorporate into our normal day-to-day activity can make a difference.” She added:”We know that the best weapon to overcoming breast cancer is the ability to stop it occurring in the first place. The challenge now is how we turn these findings into action and identify other sustainable lifestyle changes that will help us prevent breast cancer.”Dr. Alpa Patel was_____.Achief editor of Cancer Epidemiology.Bchair of the American Cancer Society.Chead of the survey study.Dchief executive of Breast Cancer Campaign.
单选题What did the report at San Antonio Breast Cancer Symposium illustrate?AFlaxseed is the most effective treatment for breast cancer.BBreast cancer is the main cause of death for women.CIt’s hard to cure breast cancer.DFlaxseed is a potential arsenal against breast cancer.