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
57
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 2______
选项
答案
A
解析
题意:年轻女性使用X射线检查的风险。短文第二段提到“使用X射线检查年轻女性,就医学上的好处而论.是有争议的,部分原因是放射有诱发癌症的危险”,这说明从医学角度看。年轻女性接受透视检查时有诱发癌症的风险,故选A。
转载请注明原文地址:https://kaotiyun.com/show/xIhd777K
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
A.HarmScreeningMayDotoaYoungerWomanB.InvestigatingtheEffectofScreeningC.EffectsPredictedbyTwoDifferentModel
A.HarmScreeningMayDotoaYoungerWomanB.InvestigatingtheEffectofScreeningC.EffectsPredictedbyTwoDifferentModel
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
Accordingtothepassage,oneofthereasonswhynewbornsinmountaincommunitiesareunderweightisthattheirmothersareunde
TheConstitution’svaguenaturehasgivenittheflexibilitytobeadaptedwhencircumstanceschange.
Themotherofthethreechildrenisthemanagerofalargecircus.Davidwasthequietestofthethreeboys.
Themotherofthethreechildrenisthemanagerofalargecircus.Itisnoteasytolookafterthreesmallchildrenbecauseso
随机试题
A.尿比重>1.020,尿钠<20nmol/LB.尿比重<1.020,尿钠>40mnol/LC.尿比重低,血中血细胞比容下降,补液后尿量仍<400ml/dD.每日尿量>1000ml/d,尿比重<1.010,易并发感染急性肾衰少尿期
A.氯化钾、氯化钠B.苯、甲苯C.一氧化碳、氰化物D.石棉、有机粉尘E.二氧化碳、氮气
牙体缺损最常见的原因是
下列房屋权利属于物权中的自物权的是()。
点型感烟、感温火灾探测器需倾斜安装时,倾斜角不应大于()
下列各项中,在计算企业所得税应纳税所得额时准予扣除的是()。
以下关于基金、股票、债券的表述,不正确的是()。
《普通高中化学课程标准(实验)》指出:化学课程体系应适应不同发展需要和不同志趣学生的需要,教科书编写时要充分体现这一课程改革的理念。选修课程模块要为全体学生的未来发展和后续化学课程模块学习提供必要的基础,选修模块的编写要从不同的角度组织内容,为不同学生的个
Hawthornegenerallyconcernedhimselfwithsuchissuesas______inhisfictions.
Britainhasannouncedthatitistocancelabout200millionpounds’worthofdebts【T1】______itbypoorerCommonwealthcountries
最新回复
(
0
)