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
Few people expect luxury while flying, but these days, even the basics seem to be in bad shape. It’s not uncommon to find your t
Few people expect luxury while flying, but these days, even the basics seem to be in bad shape. It’s not uncommon to find your t
admin
2016-03-05
33
问题
Few people expect luxury while flying, but these days, even the basics seem to be in bad shape. It’s not uncommon to find your tray table broken, the in-flight entertainment system not working and your seat【D1】______ worn—all of which can make you think, how old is this plane anyway?
The reality for many U.S. air travelers is that most of their journeys take place on planes that have been in service for a【D2】______ or more.
The average age of the fleet of the seven large U.S. passenger airlines is about 14 years old, according to The Airline Monitor. It found American and Delta/Northwest had the oldest fleets, at about 16 years on average. As of the end of 2008, a small percentage of the【D3】______ Delta/Northwest’s planes dated back to the late 1960s. U.S. fleets are among the oldest in the world, said Richard Aboulafia, an【D4】______ analyst.
"I’m not really sure that people should read that much into that," Aboulafia said. "From a safety standpoint, a lot of the older planes were built tougher and with【D5】______【D6】______, there’s no reason why a plane can’t stay safe for 25 to 30 years."
It’s also important to remember that a plane may be 20 years old, but its engines and other major systems could have been recently【D7】______ or upgraded, said Aboulafia. There’s less pressure on the airlines to 【D8】______ the【D9】______, unless it’s a safety【D10】______ or a redesign that will save money.
【D4】
选项
答案
aviation
解析
转载请注明原文地址:https://kaotiyun.com/show/soPK777K
0
专业英语四级
相关试题推荐
Inthefaceofunexpecteddifficulties,hedemonstratedatalentforquick,______action.(2010-70)
Cultureinfluencesanindividual’shealthbeliefs,behaviours,activitiesandmedicaltreatmentoutcomes.【C1】______thesignific
Foralongtime,newspapershavebeenthechiefmeansbywhichpeoplegetthemselves【C1】______.Thenewspapers,daily,evening,
______thatsomeguestswerecoming,sheshoppedallmorninginthatsupermarket.
Inabilitytorelax,to______aproblem,oftenpreventsitssolution.
Accordingtothepassage,seeingandperceivingare______.
Whatarethespeakersmainlytalkingabout?
Thestrongerachild’svocabulary,themoresuccessfulshetendstobeinschool,andnewresearchshowsthattheword-building
Themanthinksthattopreparefortheexams,thefirstthingistofigureout______.
Movingtonewmethodsofpaymentisfarfromaneasyleapformostofus.RecentfiguresfromthePaymentsCouncilshowthatman
随机试题
通常以标准成本作为其工作成本的评价与考核依据的()部门包括
A、执业医师B、执业助理医师C、进修医师D、试用期人员根据《麻醉药品和精神药品管理条例》在乡、民族乡、镇、村的医疗机构可以独立从事一般的执业活动的是
(2005年)对于图2.4—1中二维稳态导热问题,右边界是绝热的,如果采用有限差分法求解,当Ax=△y时,则在下面正确的边界节点方程中是()。
背景材料:A公司中标某城市旧区市政道路改扩建工程,改建后道路升级至城市主干道;并将原来处于快车道下雨水线、给水和燃气等三条管线拆移至新建路的辅路或人行道。合同内的三条管线施工由建设单位直接分包给三家专业公司分别承担,但A公司作为工程总承包单位负责土建配合
混凝土的可操作性,又称为混凝土的和易性,可以用混凝土的()来表征。
振动压实指标VC是指按试验规程,在规定的振动台上将碾压混凝土振动达到合乎标准的()。
下面关于表格的叙述,()是正确的。
股份有限公司采用收购本公司股票方式减资,下列说法中正确的是()。
在教育史上________最早提出“教育遵循自然”的观点。
Whenmengrowolder,theirhairoftenbeginstofallout.Whenhairbeginstofallout【C1】________oldage,itisimpossibleto
最新回复
(
0
)