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
64
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.
【C9】
选项
A、reducing
B、comparing
C、developing
D、applying
答案
D
解析
要使平台侧向移动,则需要给螺旋推进器添加不等的能量。apply…to意为“把……应用在……”。
转载请注明原文地址:https://kaotiyun.com/show/uDQd777K
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
随机试题
(2007年10月)根据修定后的《证券法》的规定,在上市公司收购中,收购人持有的被收购的上市公司的股票,在收购行为完成后的一定期限内不得转让,该期限是_______。
在Windows中,快速格式化只删除硬盘上的文件,但不检查磁盘的坏扇区;完全格式化会删除硬盘上的全部文件并在检查磁盘后将坏扇区标注出来。()
门诊,40岁妇女,闭经2年余。考虑为子宫性闭经,必需的辅助检查方法是
下列关于婴幼儿腹泻的叙述,错误的是
招标、拍卖、挂牌活动结束后,出让人应在()个工作日内将招标、拍卖、挂牌出让的结果在土地有形市场或者指定的场所、媒介公布。
国民经济统计中的机构单位是指能够独立拥有资产、承担负债、从事经济活动并与其他单位进行交易的经济实体。( )
信托业务属于商业银行的()。
合同的解除、终止,不影响合同中结算条款、清理条款的效力。()
某工厂现行甲种原料360千克,乙种原料290干克,计划利用这两种原料生产A、B两种产品共50件。已知生产1件A种产品需用甲种原料9千克,乙种原料3千克,可获利润700元;生产1件B种产品需用甲种原料4千克,乙种原料10干克,可获利润1200元,则最大利润是
IliveinthelandofDisney,Hollywoodandyear-roundsun.Youmaythinkpeopleinsuchaglamorous,fun-filledplacearehappi
最新回复
(
0
)