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
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci conceived the first mechanical apparatus(仪器), which co
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci conceived the first mechanical apparatus(仪器), which co
admin
2014-12-31
31
问题
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci conceived the first mechanical apparatus(仪器), which could carry a man【C1】______up, but this was only a design and was never tested.
The ancient dream was finally realized in 1940 when a Russian aeronautical(航空学的)【C2】______, piloted a strange-looking craft of steel tubing with a rotating fan on top. It rose awkwardly and vertically into the air from a standing start, hovered a few feet above the ground, went sideways and backwards, and then settled back to earth. That【C3】______was called a helicopter.
Imaginations were fired. People【C4】______that vertical flight transports would carry millions of passengers as do the airliners of today. Such fantastic expectations were not【C5】______. It excels in military missions,【C6】______troops, guns and strategic instruments where other aircraft cannot go. Corporations use them as airborne offices; many urban areas use them in police work, construction and logging companies【C7】______them in various advantageous ways. Engineers use them for site selection and surveying, and oil companies use them as the best way to make offshore and remote work stations accessible to crews and supplies. Any urgent【C8】______to a hard-to-get-to place is a likely task for a helicopter. Among their other【C9】______of uses, they deliver people across town, fly to and from airports,【C10】______in rescue work, and aid in the search for missing or wanted persons. With all these functions, the helicopter has now become an extremely versatile machine.
A)recognize B)vehicle C)caustic D)anticipated
E)actually F)fulfilled G)employ H)carrying
I)mission J)straight K)helpless L)engineer
M)assist N)balancing O)abundance
【C3】
选项
答案
B
解析
这里需要名词作主语,且此名词可以被叫作直升机,可选的只有vehicle,意为“交通工具”。
转载请注明原文地址:https://kaotiyun.com/show/Shq7777K
0
大学英语四级
相关试题推荐
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:"I’monlya1050."Theunluckystudentsarespeaki
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:"I’monlya1050."Theunluckystudentsarespeaki
Therewasatimewhencollegewasaplacewhereyoungadultscouldexpandtheirhorizons.Butastuitionsincrease,studentdebt
A、Thereductionofhighwaytollfeesonpassengercars.B、Thedecreaseinthenumberofprivatecars.C、Passengers’newholiday
A、Bypersuadingpeopletobuyalotofthingsinthesalespromotion.B、Bypublicizingproductswithbeautifulbutuselesspacka
Americansbelievethatindividualsmustlearnto(1)_______themselvesorrisklosingfreedom.Thismeansachievingbothfinanc
Americansbelievethatindividualsmustlearnto(1)_______themselvesorrisklosingfreedom.Thismeansachievingbothfinanc
Priortothe20thcentury,manylanguageswithsmallnumbersofspeakerssurvivedforcenturies.Theincreasinglyinterconnected
A、Adigitalwatchwiththedateandtime.B、Adigitalwatchwithyellowgoldplating.C、Amechanicalwatchwithaleatherstrap.
A、Switchtoadifferentflight.B、Gototheairportimmediately.C、Askthemantochangetheticketforher.D、Buyaticketfor
随机试题
马克斯.韦伯提出了“理想的行政组织体系”理论。认为一切社会组织的基础是等级、行政制和()
在Excel2003中,清除和删除的意义,清际的是单元格内容,单元格依然存在;而删除则是将选定的单元格和单元格内的内容一并删除。
新生儿期是指从出生至
或软或绵,或硬如镘,皮色如常,紧不宽,始终只似覆肝,是
厨房地面与墙体连接处,防水层往墙面上返高度不得低于()。
以康熙四字御笔36景,乾隆三字御笔36景而知名的园林是()。
在某医院的化疗室门口,每天都会有很多家人陪同癌症患者前来做化疗,他们对于患者的病情非常担心,对于他们所遭受的痛苦也感觉特别的不忍。医务社会工作者针对这种情况,特别开展了一个支持性的小组活动,为患者及其家属的沟通和互动交流搭建了平台。医务社会工作的特点是
李五欲自己出资设立一个有限责任公司,向杨律师进行咨询,杨律师提供的下列咨询意见中,不正确的是()。
已知A是四阶矩阵,A*是A的伴随矩阵,若A*的特征值是1,一1,2,4,那么不可逆矩阵是()
TherecessionistakingaserioustollonAmericanretail,bute-commercecouldemergeasawinner.Accordingtoanewrepor
最新回复
(
0
)