首页
登录
职称英语
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci co
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci co
游客
2023-07-05
55
管理
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 [br] 【C10】
选项
答案
M
解析
这里是一系列动词短语对于直升机的用途进行举例。故应填入动词原形,意思是“在救援工作中……”,故选assist,意为“援助”。
转载请注明原文地址:http://tihaiku.com/zcyy/2811512.html
相关试题推荐
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
Tallmenaremorelikelytohavechildrenthantheirverticallychallengedf
Tallmenaremorelikelytohavechildrenthantheirverticallychallengedf
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
Forcenturiesmandreamedofachievingverticalflight.LeonardodaVincico
随机试题
TheGermancourtisfacingalegaldilemmabecausethelawhasn’tstipulatedthe
阅读以下说明,回答问题1至问题4,将解答填入答题纸对应的解答栏内。 【说明】
吸入中毒者给予A.地西泮 B.普萘洛尔 C.硫酸镁 D.阿托品 E.半胱
群桩发生整体剪切破坏的条件是()。A.桩端处土质较硬 B.桩间距较小 C
国民党统治区的政治经济危机日益加深的原因是( ) A.国民党把接收变成“劫收
男性,47岁,因健康查体发现心房颤动而入院,平日无心悸感,既往体健,无高血压、糖
昏迷病人或不愿进食的病人A.口服为主 B.管饲为主 C.肠外营养 D.要
(2018年真题)下列关于外汇敞口的叙述中,正确的有()。A.根据业务活动,外
地下工程喷射混凝土施工时,正确的工艺要求有()。A.喷射作业区段宽以1.5
根据《水利工程营业税改增值税计价依据调整办法》(办水总[2016]132号),税
最新回复
(
0
)