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 deaths, the National Medical Re
In 1967, in response to widespread public concern aroused by medical reports of asbestos related deaths, the National Medical Re
admin
2013-03-23
62
问题
In 1967, in response to widespread public concern aroused by medical reports of asbestos related deaths, the National Medical Research Council 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 re- search 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 and related diseases. Taking into account evidence pro- vided 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 recommended 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 recommended 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 the 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 quantifies of dust than hand tools and, where possible, the use of the latter was recommended.
A critical factor 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 it was therefore recommended that 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.
According to the passage, which of the following is not the factor determining the risk ?
选项
A、the sate and type of asbestos
B、the choice of tools
C、ventilation of working environment
D、the medicine workers took
答案
D
解析
文章列举了几个因素,其中D项不是。
转载请注明原文地址:https://kaotiyun.com/show/XYhK777K
0
专业英语四级
相关试题推荐
Asmostschoolsaresetuptoday,learningiscompulsory.Itisanought,evenworse,amust,【C1】______byregularhoursandrig
ScientistshadthoughtpeoplebeganmanipulatingfiretocreatetoolsinEuropeabout25,000yearsago.Butthenewfindssugge
Manytheoriesconcerningthecausesofjuveniledelinquency(crimescommittedbyyoungpeople)focuseitherontheindividualor
It’sanindustrybuiltpurely【C1】______image,buttheactors,actressesandsingerswhoturntoitforhelpliketokeepita【C2
It’sanindustrybuiltpurely【C1】______image,buttheactors,actressesandsingerswhoturntoitforhelpliketokeepita【C2
It’sanindustrybuiltpurely【C1】______image,buttheactors,actressesandsingerswhoturntoitforhelpliketokeepita【C2
Wegottoworkandsucceeded,afteragooddealof______,inmakingourbutter.
Withinthatexclusivegroupofliterarycharacterswhohavesurvivedthroughthecenturies—fromHamlettoHuckleberryFinn—fewc
Mrs.Smithisafraidthatsheandherhusbanddon’tsee_____onNewYearResolutions.
Themotherwasafraidtolettheboy______thetree.
随机试题
在食品加热处理中,可提示食品中致病菌残留风险的是
李某,男,排便时肛门滴出鲜血,不痛。应考虑是
未含金属套、铠装的金塑小截面电缆水平敷设方式普通支架、吊架的允许跨距()。
有一个普通完全井,其直径为1m,含水层厚度H=11m,土壤渗透系数k=2m/h。抽水稳定后的井中水深h0=8m,试估算井的出水量:
排列图的绘制方法一般有()。
工业管道以设计压力为主要参数进行分级,可分成( )和超高压管道。
()不是民事行为一般成立要件的基本因素。
临时组成一个调查小组,大家彼此都不熟悉,你作为一个资格最浅的人,如何让大家熟悉你?
试评述梁启超的教育思想。
设有如下过程:PrivateSubForm_KeyDown(KeyCodeAsInteger,ShiftASInteger)PrintChr(KeyCode)EndSubPrivmeSubForm_
最新回复
(
0
)