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 Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early e
Screen Test Every year millions of women are screened with X-rays to pick up signs of breast cancer. If this happens early e
admin
2010-01-14
51
问题
Screen Test
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.
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.
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.
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 eases of breast cancer in every 100,000 women screened.
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.
“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.”
*
选项
答案
B
解析
B说的是:调查用X射线检查的结果。第三段的第一句话是这么说的:Valencia理工大学的研究人员分析了11个社区诊所用X射线检查16万以上女人的结果。可以看出,这句话为真,B必须为真。
转载请注明原文地址:https://kaotiyun.com/show/L0hd777K
本试题收录于:
职称英语理工类基础题库职称英语分类
0
职称英语理工类基础
职称英语
相关试题推荐
Thesecomputerprogramscanincreaseproductivity.
Inthe1ststudy,studentswhostayuplate______.Mr.Taylorbelievedthatthefindingoftheirstudywouldsoon______.
A.Whatcausesautism?B.Howcommonisautism?C.Doesautismoccurtogetherwithotherdisabilities?D.Whatisthedifference
FreezingtoDeathforBeautyPeopleinBeijingwearalotofclothingduringwintertofend(抵御)offthecold.IntheUnited
BeingSickPeoplearephysical,psychological(心理的),spiritual(精神的),andsocialhumanbeings.Theyhavecertainbasicnee
Weconsumealotmorethanweareabletoproduce.
A.becauseoftheirsimilarityB.thatwewouldnotbeabletounderstanditatallC.tothepopularizationofEnglishasawor
Housewiveswhodonotgoouttoworkoftenfeeltheyarenotworkingtotheirfullability.
TheTheoryofEverythingIfStephenHawkinglivesuntiltheyear2017,hewillhavelivedmorethan50yearslongerthanhis
随机试题
高位肛门闭锁的X线平片诊断标准是:()
测得某试样中铁的百分含量为20.02、20.03、20.04、20.05、20.06。计算置信度为95%时平均值的置信区间。
目前最适合作桥体龈端的材料是
通常,股份制公司的利润分配方案,由()批准。
甲公司2013年6月发生以下经济业务:业务一:甲公司向银行借入半年期的借款500000元,存入银行。业务二:甲公司向乙公司购入A材料一批,价款为30000元,增值税额为5100元,款项尚未支付,材料已验收入库。业务三:甲公司提
2019年4月,审计组对某公司2018年度财务收支进行了审计。在对该公司固定资产业务进行审计时,发现如下情况:1.该公司与设备采购有关的部分内部控制如下:(1)采购部门确定设备需要量,提出设备购置申请书,报送设备管理部门。(2)设备管理部门根据申请书
经济稳定的含义不包括()。
下列标准中,不是综合布线系统标准的是
在下列选项中,哪个不是一个算法一般应该具有的基本特征______。
Theoriginoflanguageis______.Oneofthereasonswhymeninventedcertainsoundstoexpressthoughtsandactionswasthatt
最新回复
(
0
)