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
67
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.
【C13】
选项
A、on time
B、at once
C、in line
D、in turn
答案
A
解析
on time按时,准时;at once立即;in line成一直线;in turn依次,轮流。根据后文的“flight schedule”可以推断出此处想表达的意思是“使航班准时发出”,故选A。
转载请注明原文地址:https://kaotiyun.com/show/j7Rd777K
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?
HowmanypeopleworldwidehavebeeninfectedwithHIVsincethestartoftheepidemic?
61)PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbytheprospectthatUnprecedentedchangeinthenation’s
61)PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbytheprospectthatUnprecedentedchangeinthenation’s
61)PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbytheprospectthatUnprecedentedchangeinthenation’s
Inoneverylongsentence,theintroductiontotheU.N.Charterexpressestheidealsandthecommonaimsofallthepeoplewhose
Inoneverylongsentence,theintroductiontotheU.N.Charterexpressestheidealsandthecommonaimsofallthepeoplewhose
Broadlyspeaking,theEnglishmanisaquiet,shy,reservedpersonwhoisfully【21】______onlyamongpeopleheknowswell.In
随机试题
周节仪是用相对测量法测量齿轮周节误差的一种量仪。()
牡丹皮生用可牡丹皮酒炒用
A.核苷类逆转录酶抑制剂B.非核苷类逆转录酶抑制剂C.蛋白酶抑制剂D.免疫调节剂E.抗真菌剂白介素2
根据《建设工程勘察设计合同条例》的规定,勘察合同的定金应为勘察费的()。
表示市场处于超买还是超卖状态的技术指标是()
企业从事海水养殖项目的所得,免征企业所得税。()
我们不拒斥时尚.并乐于承认自己在生活中还曾受惠于时尚。但说文学不能脱离时代与不能脱离时尚,其间区别是巨大而本质的。因为作家不是模特、艺人或设计师,他可以追随时代。但永远不能攀附潮流。因为跟着潮流亦步亦趋,只能使他变成一个受塑者而做不成创造者。并且,这种随潮
磁臂驱动调度算法中,能够随时改变磁头运动方向的算法是()。
农业是全面建成小康社会、实现现代化的基础。坚持创新发展,要大力推进农业现代化,这要求
NSFNET采用的是层次结构,分为主干网、地区网和______。
最新回复
(
0
)