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
Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airbor
Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airbor
admin
2009-05-09
24
问题
Many people who fly at least occasionally have come down with a cold or the flu shortly after disembarking. Is the air in airborne commercial jets【21】______? The Association of Flight Attendants (AFA), 【22】______which 42, 000 flight attendants with 27 airlines are represented, evidently thinks so. The organization claims that the incidence of air-quality-related diseases has【23】______among its members and demands that prompt actions be【24】______to improve the conditions in the airplane cabin.
A study the AFA【25】______in 1997 uncovered about 1, 000 self-reported incidents of headaches, dizziness and memory loss【26】______flight attendants and passengers. Some flight attendants were too ill to【27】______their safety duties, while others have been permanently disabled.
Because of airlines’ efforts to【28】______their expenses, cabin-air filters are not cleaned【29】______. The complaints of flight attendants do not always give【30】______to correct maintenance. Airlines turned to recycled air, 【31】______that they would reduce some of their costs. They are not required to put filters in. Airlines are【32】______great pressure to get their flights out【33】______. So they do not pay as much attention to systems that are not as【34】______to flight schedule and safety.
Recent research findings emphasize the concern that filters can【35】______engine chemicals into the cabin air. This may not happen【36】______every flight, but it is a persistent problem.
In a study published in October 1998 an investigation was made【37】______complaints of crew members【38】______air quality and health. More than half of the 200 subjects reported health problems they【39】______to cabin air. It was concluded that these health problems were consistent with【40】______harmful gases and substances.
【21】
选项
A、humid
B、unhealthy
C、unbearable
D、crisp
答案
B
解析
humid温暖潮湿的;unhealthy对健康有害的,不卫生的;unbearable难以忍受的;crisp凉爽的,清新的。根据文章第一句话可知,很多人乘坐飞机后会感冒,由此可以推断此处表达的意思是“……不健康”,故选B。
转载请注明原文地址:https://jikaoti.com/ti/ohBsFFFM
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Somemoderncitiesareusuallyfamousforpeoplewholiveaverylongtime.
Childrenwhogriptheirpenstooclosetothewritingpointarelikelytobeatadisadvantageinexaminations,【31】______tothe
Asthe21stcenturybegins,anumberofleadersinpolitics,education,andotherprofessionsbelievethattheUnitedStatesmus
RecentsurveysshowthatJapaneseyouthhavebecomea"MeGeneration"thatrejectstraditionalvalues."Around1980manyJa
Whatisthispassagemainlyabout?
Nowadays,manyChineseyouthsareeagertoimitateAmericans.They【C1】______cocacola,loverock-and-rolland【C2】______dyetheir
ProfessorWangwentonalecturetourtoEdinburgh.
ThetramsthatglidethroughCroydonbydayareevocativeofcontinentalEurope.Theloudandsometimesviolentdrunkennessamon
ThetramsthatglidethroughCroydonbydayareevocativeofcontinentalEurope.Theloudandsometimesviolentdrunkennessamon
ThetramsthatglidethroughCroydonbydayareevocativeofcontinentalEurope.Theloudandsometimesviolentdrunkennessamon
随机试题
用统筹法计算工程量的说法错误的是()。
风管可现场制作或工厂预制,风管制作方法分为()。
()的制造过程,必须经国务院特种设备安全监督管理部门核准的检验检测机构按照安全技术规范的要求进行监督检验。
下列(),应当办理会计手续,进行会计监督。
票据时效的最后期限,在非节假日是以()。
检验检疫机构对报检员日常的报检行为实施差借登记管理制度。( )
要在演示文稿的每一张幻灯片中都使用某个图案,可以通过()实现。
给定程序MODI1.C中函数fun的功能是:通过某种方式实现两个变量值的交换,规定不允许增加语句和表达式。例如变量a中的值原为8,b中的值原为3,程序运行后a中的值为3,b中的值为8。请改正程序中的错误,使它能得出正确的结果。注意:不要
Fool_____Michaelis,hecouldnothavedonesuchathing.(2014)
TheEnglishnationalcharacterisdualistic:Oneaspectisconservative,theotherextroverted(性格外向的).Thepubisafineexample
最新回复
(
0
)