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
50
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
Theconversationismainlyabout
Whatproblemdoesthewomanhave?
Whatarethetwospeakersmainlytalkingabout?
Whatarethetwospeakersmainlydiscussing?
Thewealthofacountryshouldbemeasured______thehealthandhappinessofitspeopleaswellasthematerialgoodsitcanpr
Foralongtime,newspapershavebeenthechiefmeansbywhichpeoplegetthemselves【C1】______.Thenewspapers,daily,evening,
______,manyproblemsofspaceflightcouldnotbesolvednow.
Thecommitteehasanticipatedtheproblemsthat______intheroadconstructionproject.[2007]
ThearchitectoftheWalkieTalkiebuildinginLondonhasadmittedthathepredicteditmightreflecthotsunraystothestreet
Themanthinksthattopreparefortheexams,thefirstthingistofigureout______.
随机试题
组织行为学的边缘性主要表现为()
想像处理的信息主要是
患者呼吸急促,喉中哮鸣有声,胸膈满闷如塞,痰少咯吐不爽,面色晦滞,口不渴,受寒易发,形寒怕冷,舌苔白滑,脉浮紧。治疗应首选
tRNA的三级结构为
环境的主体可以是人也可以是物,离开了主体谈环境是没有意义的。()
位于某市区的一家房地产开发公司,2008年度开发建设办公楼一栋,12月与某生产性外商投资企业签订一份购销合同,将办公楼销售给该生产性外商投资企业,销售金额共计1200万元。合同载明,外商投资企业向房地产开发公司支付货币资金900万元,另将一块未作任何开发的
下列各项关于纳税申报管理的表述中,正确的是()。
下列有关注册会计师利用内部审计人员工作的说法中,正确的是()。
从医学角度看,非酒精性脂肪肝是因为脂代谢紊乱等多种因素引起了肝细胞内中性脂肪(主要是某油三酯和脂肪酸)过度堆积。脂代谢紊乱引发的多种重要组织损伤,特别是心脑血管和肝脏损害,对健康造成极大威胁,因此其机制和防治策略研究一直是国际上医学研究的前沿领域。专家指出
地球分为三层:中心层是地核,主要由铁元素组成;中间是地幔;外层是地壳。地震一般发生在地壳之中。地壳内部在不停地变化,由此而产生力的作用(即内力作用),使地壳岩层变形、断裂、错动,于是便发生地震。超级地震指的是震波极其强烈的大地震。但其发生率占总地震的7%一
最新回复
(
0
)