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
59
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] 【C4】
选项
答案
D
解析
这里需要一个谓语动词,时态为一般过去时,可选的只有anticipated,意为“期望”。或根据下一句such fantastic expectations可知。此空应指人们的期望,故选anticipated。
转载请注明原文地址:https://tihaiku.com/zcyy/2810256.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
FormanypeopleintheU.S.,sportsarenotjustforfun.Theyarealmosta
【B1】[br]【B17】A、labelsB、cyclesC、vehiclesD、devicesC名词辨义题。根据本句及全文可知作者讨论的是汽车,而
高校教师为人师表的道德要求就是要求高校教师成为学生的师表就行了。
判断甲亢病情程度最重要指标A.甲状腺肿大程度 B.脉率与脉压变化 C
A.B.C.D.E.表示双胞胎的符号是
一般病人术前血红蛋白大于多少方可手术A.6g/L B.8g/L C.10g/
影响骨折愈合最主要的因素是A:高龄 B:伤口感染 C:粉碎性骨折 D:血液
下列关于认知需要等式的说法,正确的是()。A:认知需要=储蓄动机+增收减支的努力
工资支付单不属于()。A、记账凭证 B、自制原始凭证 C、外来原始凭证 D
某工程在混凝土施工过程中,由于称重设备发生故障后未按管理标准予以校准而继续使用,
最新回复
(
0
)