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
考研
It took decades to prove that cigarette smoking causes cancer, heart disease, and early death. It took【C1】______years to establi
It took decades to prove that cigarette smoking causes cancer, heart disease, and early death. It took【C1】______years to establi
admin
2017-08-11
39
问题
It took decades to prove that cigarette smoking causes cancer, heart disease, and early death. It took【C1】______years to establish that secondhand smoke also kills. Now scientists are worried about another cigarette-related phenomenon: thirdhand smoke. It’s real, and it’s found everywhere. Without knowing it, indoor smokers have left a toxic【C2】______that continues years after their last cigarette was extinguished.
Researchers now know that thirdhand smoke combines with some substances to create new compounds. Thirdhand smoke【C3】______and settles with dust,【C4】______down to carpeting and furniture【C5】______, and makes its way deep into the material in paneling and wall. It【C6】______in the hair, skin, clothing, and fingernails of smokers—【C7】______a mother who doesn’t smoke【C8】______her kids, smokes outside, then comes inside and holds the baby is exposing that child to thirdhand smoke. The new compounds are【C9】______to clean up, have a long life of their own, and many may cause cancer. And the contamination becomes more toxic【C10】______time.
No one knows, in this relatively new field of research, how long the compounds created by smoke and environmental pollutants last. "In homes where we know no smoker has lived for 20 years, we’ve still found【C11】______of these compounds in dust, in wallboard," says a scientist. But scientists do know that babies and children are most【C12】______to the toxic effects of thirdhand smoke. They【C13】______on rugs, fall asleep on carpets, and teethe on furniture, all of which could be【C14】______with thirdhand smoke.
Researchers aren’t just worried about the risk of cancer. Thirdhand smoke could be【C15】______other health problems. Those who move into houses or apartments【C16】______owned by smokers might be exposed as well. And thirdhand smoke is difficult to【C17】______. It’s virtually impossible to remove this stuff【C18】______you remove the flooring and wall.
Experts say much more work needs to be done on the【C19】______of the problem, the health risks, and effective ways to clean up the compounds. They advise parents not to expose their children to thirdhand smoke, not to【C20】______hotel rooms or cars used by smokers.
【C3】
选项
A、develops
B、mixes
C、covers
D、explodes
答案
B
解析
上一句提到三手烟会与其他物质结合(combines with some substances)。空格后的dust属于其中一种,故B项mixes“混合”正确,对应上句中的combines一词。
转载请注明原文地址:https://kaotiyun.com/show/HoIZ777K
0
考研英语一
相关试题推荐
Apairofdice,rolledagainandagain,willeventuallyproducetwosixes.Similarly,thevirusthatcausesinfluenzaisconstan
Apairofdice,rolledagainandagain,willeventuallyproducetwosixes.Similarly,thevirusthatcausesinfluenzaisconstan
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
Forthefirsttime,morewomenthanmenintheUnitedStatesreceiveddoctoraldegreeslastyear,theclimaxofdecadesofchang
随机试题
“本年利润”账户年末结转后,余额在()
治疗闭经肾气亏损证,应首选的方剂是
A.补肾固精,养肝明目B.温肾补精,养血益气C.益肾补肺,止血化痰D.补肾阳,祛风湿E.暖肾固精缩尿,温脾止泻摄唾益智仁的功效是
使血小板内环磷腺苷(cAMP)浓度增高的抗血小板药是
施工单位签署质量合格的文件上,必须有()的签字盖章。[2010年考题]
下列关于施工总承包管理方的说法中,正确的有()。
填制凭证:制单日期2014年11月13日,附件数为2,摘要:取得短期借款,借:银行存款一工商银行500000,贷:短期借款500000。(用户名003王红,账套001A公司,操作日期2014年11月13日)
同际电信联盟在1998年《世界电信发展报告》中提出的实施普遍服务的标准有()。
2005年与2001年相比,增长速度超过100%的有()个下列说法不正确的是()
下面正确使用动态数组的是( )。
最新回复
(
0
)