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
Rescue Platform In the aftermath of the terrorist attacks on the World Trade Center, security experts are trying to develop
Rescue Platform In the aftermath of the terrorist attacks on the World Trade Center, security experts are trying to develop
admin
2015-08-05
40
问题
Rescue Platform
In the aftermath of the terrorist attacks on the World Trade Center, security experts are trying to develop new ways of rescuing people from burning skyscrapers. One【C1】______is a platform capable of flying vertically and hovering in the air【C2】______a helicopter. The platform would rise up and down alongside a skyscraper and pick up people【C3】______in high stories.
The idea for the vertical takeoff platform was hatched(策划)more than ten years ago by a Russian aerospace engineer, David Metreveli, who has since moved to Israel. Metreveli’s design, 【C4】______the Eagle, calls for two jet engines that【C5】______four large horizontal propellers. The spinning of the propellers【C6】______the necessary lift, or upward force, to raise the platform. The more【C7】______is supplied to the propellers, the higher the platform【C8】______. Moving the platform sideways involves【C9】______differing amounts of power to each propeller.
Helicopters are now used in some【C10】______to get people out of burning buildings. Escape baskets slung from them dangle beside the building for people to climb into. 【C11】______, the baskets cannot reach every floor of a building 【C12】______the ropes from which they hang become unstable【C13】______a certain length.
So far, Metreveli has built a small-scale model of the Eagle to【C14】______his idea. In the wake of September 11 , he has been able to secure enough funding to start building a larger , 4-meter by 4-meter prototype, 【C15】______he calls the Eaglet.
【C8】
选项
A、stays
B、rises
C、stars
D、runs
答案
B
解析
根据上下文可知,平台是要上升(rises)。故选B。
转载请注明原文地址:https://jikaoti.com/ti/Vi6sFFFM
本试题收录于:
职称英语理工类C级题库职称英语分类
0
职称英语理工类C级
职称英语
相关试题推荐
FDAhasapprovedtheplanofusingHIVtocurecancerinhumans.TheHIVvirushascausedmoredeathsindevelopedcountries.
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
HealthyFoodStreetsellers,particularlyindevelopingcountries,supplylargeamountsoffood(51)peopleonlowincomes.Thi
Streetsellersparticularlyindevelopingcountries,supplylargeamountsoffood【H1】peopleonlowincomes.Thissectoralsoemp
随机试题
腓骨颈有移位的骨折可引起腓总神经损伤。
根据《机械设备安装工程施工及验收通用规范》规定,()须带负荷试运转。
企业购买分期付息的债券作为短期投资时,实付价款中包含的已到期而尚未领取的债务利息,应记入的会计科目是()。
张某在一风景区旅游,爬到山顶后,见一女子孤身站在山顶悬崖边上,目光异样,即心生疑惑。该女子见有人来,便向悬崖下跳去,张某情急之下拉住女子衣服,将女子救上来。在救人过程中,张某随身携带的价值2000元的照相机被碰坏,手臂被擦伤;女子的头部也被碰伤,衣服被撕破
Whilewe’veknownforsometimeaboutthemanylong-termbenefitsofexercise,newresearchshowsaerobicexercisealsomayhave
关于内存变量的调用,下列说法正确的是()。
在考生文件夹下打开文档Word.docx。某高校学生会计划举办一场大学生网络创业交流会的活动,拟邀请部分专家和老师给在校学生进行演讲。因此,校学生会外联部需制作一批邀请函,并分别递送给相关的专家和老师。请按如下要求,完成邀请函的制作:邀请函文档制作
A、 B、 C、 C
A、 B、 C、 A
Predictionsoflargepopulationsofrobotsinindustryhaveyettocometrue.Foradecadeormore,manufacturersofbigrobots
最新回复
(
0
)