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
2019-01-25
77
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【C1】______? The Association of Flight Attendants (AFA),【C2】______which 42, 000 flight attendants with 7 airlines are represented, evidently thinks so. The organization claims that the incidence of air-quality-related diseases has【C3】______among its members and demands that prompt actions be【C4】______to improve the conditions in the airplane cabin.
A study the AFA【C5】______in 1997 uncovered about 1, 000 self-reported incidents of headaches, dizziness and memory loss【C6】______flight attendants and passengers. Some flight attendants were too ill to【C7】______their safety duties, while others have been permanently disabled.
Because of airlines’ efforts to【C8】______their expenses, cabin-air filters are not cleaned【C9】______. The complaints of flight attendants do not always give【C10】______to correct maintenance. Airlines turned to recycled air,【C11】______that they would reduce some of their costs. They are not required to put filters in. Airlines are【C12】______great pressure to get their flights out【C13】______. So they do not pay as much attention to systems that are not as【C14】______to flight schedule and safety.
Recent research findings emphasize the concern that filters can【C15】______engine chemicals into the cabin air. This may not happen【C16】______every flight, but it is a persistent problem.
In a study published in October 1998 an investigation was made【C17】______complaints of crew members【C18】______air quality and health. More than half of the 200 subjects reported health problems they【C19】______to cabin air. It was concluded that these health problems were consistent with【C20】______harmful gases and substances.
【C16】
选项
A、by
B、on
C、at
D、along
答案
B
解析
表示在某种交通工具时需要用介词on,故选B。
转载请注明原文地址:https://kaotiyun.com/show/37Rd777K
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
HowmanypeopleworldwidehavebeeninfectedwithHIVsincethestartoftheepidemic?
somepeopleprefertoplanactivitiesfortheirfreetimeverycarefully.Otherschoosenottomakeanyplanatallfortheirfr
61)PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbytheprospectthatUnprecedentedchangeinthenation’s
61)PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbytheprospectthatUnprecedentedchangeinthenation’s
Inoneverylongsentence,theintroductiontotheU.N.Charterexpressestheidealsandthecommonaimsofallthepeoplewhose
Inoneverylongsentence,theintroductiontotheU.N.Charterexpressestheidealsandthecommonaimsofallthepeoplewhose
Inoneverylongsentence,theintroductiontotheU.N.Charterexpressestheidealsandthecommonaimsofallthepeoplewhose
随机试题
《证券法》规定,证券公司的对外负债总额不得超过其______规定倍数。
企业的预算主要包括哪几个方面?
Besidesbeginanendlesssourceofenergy,theuseofthesunhasotheradvantagesaswell.
胸段食管癌多见于________、________次之,________较少。
男性,54岁。1年前日常活动后出现胸骨后疼痛,每日2~3次,近2月发作次数增多,每日5~6次,轻微活动也能诱发,发作时心电图ST段呈一过性水平压低,应诊断为
患儿,日龄4天,鼻塞,体温39.9℃,咽充血,诊断为上呼吸道感染。对该患儿的护理措施应首选
下列账户中,属于备抵账户的有()。
下列有关文学常识的表述,不正确的一项是()。
治安行政管理必须坚持(),同时努力发展群众的自治管理。
这些辣椒看起来很辣,其实一点儿都不辣。
最新回复
(
0
)