首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Screen Test 1. Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens earl
Screen Test 1. Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens earl
admin
2013-11-25
52
问题
Screen Test
1. 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 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-rays because their breast tissue is denser.
3. Researchers at the Polytechnic University of Valencia analysed 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 programme 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 programme, 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 programme. "
A. Harm Screening May Do to a Younger Woman
B. Investing the Effect of Screening
C. Effects Predicted by Two Different Models
D. Small Risk of Inducing Cancers from Radiation
E. Treatment of Cancers
F. Factors That Trigger Cancers
Paragraph 3 ______
选项
答案
B
解析
题意:调查用X射线检查的结果。短文第三段第一句话提到“巴伦西亚理工大学的研究人员分析了11个社区门诊用X射线检查16万以上女性的结果”,由此可以看出,这一段主要讲的是“分析研究X射线检查的结果”,故选B。
转载请注明原文地址:https://kaotiyun.com/show/DIhd777K
本试题收录于:
职称英语卫生类A级题库职称英语分类
0
职称英语卫生类A级
职称英语
相关试题推荐
Youwritethisforyourmotherwhenyouanswerthephoneforher.m______
A.HarmScreeningMayDotoaYoungerWomanB.InvestigatingtheEffectofScreeningC.EffectsPredictedbyTwoDifferentModel
A.HarmScreeningMayDotoaYoungerWomanB.InvestigatingtheEffectofScreeningC.EffectsPredictedbyTwoDifferentModel
A.HarmScreeningMayDotoaYoungerWomanB.InvestigatingtheEffectofScreeningC.EffectsPredictedbyTwoDifferentModel
A.HarmScreeningMayDotoaYoungerWomanB.InvestigatingtheEffectofScreeningC.EffectsPredictedbyTwoDifferentModel
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
Themotherofthethreechildrenisthemanagerofalargecircus.Davidwasthequietestofthethreeboys.
随机试题
股票按照股东权利和义务不同可分为______和______。
与葡萄胎的声像图表现相似的疾病不包括
患者,男性,38岁,全麻下行直肠癌根治术,术后麻醉清醒前,其卧位应取
由于形状不规则的土地一般不能有效利用,相对于形状规则的土地,其价格一般要低。()
下列关于投资方案经济效果评价指标的说法中,正确的有()。
贵州省西部的草海,绿如碧玉,风景优美,被誉为“高原上的明珠”。()
思想品德课是我国德育的主要途径。()
把地球划分成东、西两半球的经线圈是()。
2011—2015年,我国民办小学入学人数平均每年增加()人。
某商场失窃,员工甲、乙、丙、丁涉嫌被拘审。甲说:“是丙作的案。”乙说:“我和甲、丁三人中至少有一个人作案。”丙说:“我没有作案。”丁说:“我们四人都没作案。”如果四人中只有一个说真话,则可推出以下哪项结论?
最新回复
(
0
)