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
2021-08-03
66
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.
【D7】
选项
答案
manufactured
解析
转载请注明原文地址:https://kaotiyun.com/show/6e3K777K
0
专业英语四级
相关试题推荐
A、Lastweek.B、Onasummerday.C、Towardsevening.D、Lateatnight.D①选项都是表示时间的名词,听音时应留意对话中提到的时间。②男士问女士抢劫案是怎么发生的,她说是在深夜回家的路上发生的。
(1)PeopleintheUnitedStatesinthenineteenthcenturywerehauntedbytheprospectthatunprecedentedchangeinthenation’s
(1)Ifyou’relikemostpeople,you’rewaytoosmartforadvertising.Youfliprightpastnewspaperads,neverclickonadsonlin
ThatsummerIdrovewestwithafriend,andwe_____alittlemoneydoingoddjobsandasmuchaspossiblevisitedhisrelatives
OnlineEducationIntroductionOnlinecoursescanbringthebestqualityeducationtopeoplearoundtheworldforfree.Comp
OnlineEducationIntroductionOnlinecoursescanbringthebestqualityeducationtopeoplearoundtheworldforfree.Comp
OnlineEducationIntroductionOnlinecoursescanbringthebestqualityeducationtopeoplearoundtheworldforfree.Comp
OnlineEducationIntroductionOnlinecoursescanbringthebestqualityeducationtopeoplearoundtheworldforfree.Comp
随机试题
假如用户要求用随机存取方式查找文件记录,则采用索引结构跟采用链接结构比较()
不属于加强药品安全风险管理主要措施的是
督察警察是对公安机关的人民警察和人民群众执行法律、法规、遵纪守法的情况进行监督的警察。
专家型教师将练习看作检查学生学习的()。
测验分数解释的基本原则。【河北师范大学2013;南开大学2015】
设y=y(x)可导,y(0)=2,令△y=y(x+△x)-y(x),且,其中α是当△x→0时的无穷小量,则y(x)=_____________________。
设在SQLServer2008某数据库中,要设置不允许用户U1获得对表T数据的删除权限,请补全实现该授权操作的SQL语句:_______ONTTOU1;
以下对结构体类型变量td的定义中,错误的是
对下列4个序列用快速排序方法进行排序,以序列的第一个元素为划分的基准。在第一趟划分过程中,元素移动次数最多的序列是______。
下列选项中,既可作为输入设备又可作为输出设备的是_______。
最新回复
(
0
)