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
In 1967, in response to widespread public concern aroused by medical reports of asbestos related death, the National Medical Res
In 1967, in response to widespread public concern aroused by medical reports of asbestos related death, the National Medical Res
admin
2016-11-13
76
问题
In 1967, in response to widespread public concern aroused by medical reports of asbestos related death, the National Medical Research Council (NMRC) organized a committee of enquiry to investigate the health threats associated with the use of asbestos in the building industry. After examining evidences provided by medical researchers and building workers and management, the Council published a report which included advices for dealing with asbestos. The report confirmed the findings of similar research in the United States and Canada. Exposure to relatively small quantities of asbestos fibers, they concluded, was directly responsible for the development of cancers, asbestosis (石棉沉着病) and related diseases. Taking into account evidence provided by economists and building industry management, however, the report assumed that despite the availability of other materials, asbestos would continue to play a major role in the British building industry for many years to come because of its availability and low cost.
As a result, the Council gave a series of recommendations which were intended to reduce the risks to those who might be exposed to asbestos in working environments. They suggested that, where possible, asbestos-free materials should be employed. In cases where asbestos was employed, it was recommended that it should be used in such a way that loose fibers were less likely to enter the air. The report advised that special care should be taken during work in environments which contain asbestos. Workers should wear protective equipment and take special care to remove dust from the environment and clothing with the use of vacuum cleaner.
The report identified five factors which determine the level of risk involved. The state and type of asbestos is critical to determining the risk factors. In addition, dust formation was found to be limited where asbestos was used when wet rather than dry.
The choice of tools was also found to affect the quantities of asbestos particles that enter the air. Machine tools produce greater quantities of dust than hand tools and, where possible, the use of the latter was preferred.
A critical factor which takes place in risk reduction is the adequate ventilation of the working environment. When work takes place in an enclosed space, more asbestos particles circulate and so natural or machine ventilation should be used. By closely following these advices, it was claimed that exposure can be reduced to a reasonably practical minimum.
Evidence from economists and building industry management shows that
选项
A、exposure to asbestos fibers is cancer-causing.
B、asbestos is in extensive use at present.
C、exposure to asbestos fibers can be reduced.
D、use of asbestos is being gradually decreased.
答案
B
解析
根据题干中的Evidence和economists and building industry management定位到第1段末句。该句指出,虽也可使用其他替代材料,但由于石棉使用方便、价格低廉,所以将继续在英国建筑业发挥主要作用。因此,根据石棉自身难以被取代的优点以及在未来可能继续发挥主要作用,可推测目前石棉的使用很广泛。由此可排除D,选B。根据第l段倒数第2句的叙述,接触石棉纤维将引发癌症的结论是整份报告的结论之一,与经济学家和建筑业管理层提供的证据无关,故排除A。文章的确提出了一些降低接触石棉纤维风险的建议,但与题干中的economists and building industry management无关,故排除C。
转载请注明原文地址:https://kaotiyun.com/show/PnJK777K
0
专业英语四级
相关试题推荐
Whatcanpeopledowiththerateofpopulationgrowth?
Howdidthewomangettotheofficethismorning?
Whatresponsibilitiesdostateshaveconcerningeducation?
HewasoneofNewcastle’smost______medicalmen,aworldauthorityonheartdiseases.
Iliveinastreetofenormouslate-Victorianhouses.Mosthavebeenconvertedintoflats,butquiteanumberarenowprivatepr
Withthebreakneckspeedatwhichtoday’sbusinessesmove,there’sonemantrawe’dalldowelltoremember:Changeisconstant.
Inanefforttosustaincommercialandrecreationalfishingforthenextseveraldecades,theUnitedStatesthisyearwillbecom
AyearhaspassedsinceChile’s33trappedminerswerehauledtofreedomintheAtacamaDesert.Byandlarge,it’sbeenarelati
______strictshemaybe,sheiscertainlyaconsideratemanagerwhocaresheremployees’need.
[A]blossoms[I]accepts[B]pieces[J]firmly[C]composes[K]grow[D]parts[L]desirable[E]securely[M]produce[F]ex
随机试题
铜与铜合金焊接时在焊缝及热影响区易产生冷裂纹。
乙型肝炎传播的途径有
A.PaO2正常、PACO2降低B.PaO2正常、:PACO2升高C.PaO2降低、PACO2降低D.PaO2降低、PACO2升高轻度支气管哮喘发作早期的血气变化为
妊娠期龈炎的组织学表现不包括
灯具超过__________的应预埋吊钩,预埋的圆钢直径最小不小于__________。预埋件必须报隐检。
关于共同共有的外部关系,下列说法中不正确的是()。
个人征信系统所收集的各类信息中,破产记录属于()的范畴。
甲未按规定向乙支付货款,乙企业按合同规定向甲收取违约金,由于违约金是在销售实现后收取的,故不属于销售额范围。()
2005年5月3日,受中共中央和国务院的委托,中共中央台湾工作办公室、国务院台湾事务办公室主任陈云林宣布,大陆同胞向台湾同胞赠送一对象征和平团结友爱的大熊猫;同时宣布,大陆有关方面将于近期开放大陆居民赴台湾(),扩大开放台湾()准入并对其中
Theyhave______downmyapplication.
最新回复
(
0
)