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
A、To inspect harmfulness of chemical mixtures. B、To prove chemicals are harmless. C、To produce safe chemicals. D、To study chemic
A、To inspect harmfulness of chemical mixtures. B、To prove chemicals are harmless. C、To produce safe chemicals. D、To study chemic
admin
2016-09-08
51
问题
Every day, people come into contact with thousands of chemicals. These chemicals are said to be harmless to human health.(1)In fact. the chemicals are considered so safe that we wash with them. We put them on our bodies and even on our faces. Other chemical products are used throughout our homes. By the time you walk out your front door, you have already been exposed to thousands of chemicals.
On its own, each chemical seems harmless. But in combination with other chemicals, they may become deadly. That is the finding of a two-year study by a task force of scientists.(2)The task force was told to investigate the cancer-causing probability of chemical mixtures. Their job was to study the cancer-causing potential of 85 chemicals. All 85 are said to be common in the environment. They explain that chemicals have the potential, or ability, to form dangerous mixtures.
1. How do people see chemicals in life?
2. What is the scientists’ task?
选项
A、To inspect harmfulness of chemical mixtures.
B、To prove chemicals are harmless.
C、To produce safe chemicals.
D、To study chemical compositions.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/9WY7777K
0
大学英语四级
相关试题推荐
Nooneknowsexactlyhowmanydisabledpeoplethereareintheworld,but【C1】______suggestthefigureisover450million.Then
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesandtoblamethemformostofthemisunderstandingsbetw
Weoftenpassonlittlebitsofinformationtoourchildren,notknowingiftheyaretrue,andonlybecausetheywere【B1】_______
A、TheyarelivinginthetallbuildingofManhattan.B、TheyarelivinginthetallbuildingofPhiladelphia.C、Theyarelivingi
A、Buyadifferentkindofmedicine.B、Seethedoctorimmediately.C、Takeasecondpill.D、Avoidtakinganymedication.C行为活动题。女士
元宵节(LanternFestival)是在阴历的(lunar)一月十五日。早在西汉时期,它已经成为具有重要意义的节日。猜灯笼“谜语”(riddle)是节日的核心部分(essentialpart)。灯笼的主人会将谜语写在一张纸条上并贴在灯笼上。如果游客
A、Persuadehimtoquitsmoking.B、Findanewjobforhim.C、Askhimtobeindependent.D、Tellhimhowtowork.A
A、BecauseLondontaxidriversallhavegonethroughaverytoughtrainingperiodtogetspecialtaxidrivinglicense.B、Because
A、Becausetheyfeelnervouswhennotsmoking.B、Becausetheyhavenothingtodowhennotsmoking.C、Becausetheyfeelnotastei
A、Placeitatthetopofthecooler.B、Placeitatthebottomofthecooler.C、Putitsendsinthewater.D、Putitoutdoors.C
随机试题
A.等容收缩期B.等容舒张期C.射血期D.充盈期(2010年第123题)在一次心动周期中,冠状动脉血流量急剧降低的时相是
适用于心虚胆怯型心悸的治法是适用于心阳不足型心悸的治法是
下列可引起根尖周疾病的化学因素不包括
下列关于数罪并罚的说法不正确的有()。
下列关于工具、器具及生产家具购置费的表述中,正确的是<)。
根据《公开发行证券的公司信息披露内容与格式准则第1号——招股说明书》(简称“第1号准则”)的规定,在招股说明书中,发行人应披露影响本行业发展的有利和不利因素,包括( )。
证券投资基金的动作实际上起到了把储蓄金转化为生产资金的作用。()
CPU执行OUT DX,AL指令时,______的值输出到地址总线上。
Conventionalwisdomhasitthatconcernfortheenvironmentisaluxuryonlytherichworldcanafford;thatonlypeoplewhoseb
TheMediterranean’sKillerAlgae1.Todaytherearemanyinvasivespeciesthreateningecosystemsallovertheworld,butfew
最新回复
(
0
)