首页
登录
职称英语
For centuries men dreamed of achieving vertical flight. In 400 A.D. Chinese
For centuries men dreamed of achieving vertical flight. In 400 A.D. Chinese
游客
2024-04-14
43
管理
问题
For centuries men dreamed of achieving vertical flight. In 400 A.D. Chinese children played with a fan-like toy that spun upwards and fell back to earth as rotation ceased. Leonardo da Vinci conceive the first mechanical【B1】______, called a "Helix," which could carry man straight up, but was only a design and was never tested.
The ancient-dream was finally realized in 1940 when a Russian engineer piloted a strange looking craft of steel tubing with a rotating fan【B2】______. It rose awkwardly and vertically into the air from a standing start, hovered a few feet above the ground, went 【B3】______ and backwards, and then settled back to earth. The vehicle was called a helicopter.
Imaginations were fired. Men dreamed of going to work in their own personal helicopters. People anticipated that vertical flight transports would carry millions of passengers as do the airliners of today. Such fantastic expectations were not【B4】______.
The helicopter has now become an extremely useful machine. It【B5】______ in military missions, carrying troops, guns and【B6】______ instruments where other aircraft cannot go. Corporations use them as airborne offices, many metropolitan areas use them in police work, construction and logging companies employ them in various【B7】______ 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【B8】______ crews and supplies. Any urgent mission to a hard-to-get-to place is a likely task for a helicopter. Among their other 【B9】______ of use: deliver people across town, fly to and from airports, 【B10】______ rescue work, and aid in the search for missing or wanted persons. [br] 【B8】
选项
答案
accessible to
解析
accessible to意为“易接近的”,与前面的句子成分构成“make+宾语+补足语(a.)”的结构。
转载请注明原文地址:https://tihaiku.com/zcyy/3555428.html
相关试题推荐
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirt
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirt
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirt
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirt
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirt
JustlikeChinese,Westernersgivegiftsonmanyoccasions,suchas,onbirt
Forcenturiesmendreamedofachievingverticalflight.In400A.D.Chinese
Forcenturiesmendreamedofachievingverticalflight.In400A.D.Chinese
Forcenturiesmendreamedofachievingverticalflight.In400A.D.Chinese
Forcenturiesmendreamedofachievingverticalflight.In400A.D.Chinese
随机试题
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
CanBurglarsJamYourWirelessSecuritySystem?A)Anyproductth
下面你将听到一段回忆邓小平同志的发言。上个世纪70年代末,我参加了第四次全国文代会,大会上小平同志致辞时获得的长时间的热烈掌声给我留下了极深的
Amodelofthedevelopmentoftheinformationsciencesisdescribedandused
[originaltext]ThenumberofspeakersofEnglishinShakespeare’stimeises
Fromchildhoodtooldage,wealluselanguageasameansofbroadeningour
如果永久持有股票,则投资于股票所得到的未来现金流量是()。A.股利和本金之和
A.调脾散 B.参苓白术散 C.养阴增液汤 D.四君子汤 E.七味白术散
通风系统按照( ),分为进气式通风和排气式通风。A.操作原理 B.特征 C
按照《行政复议法》规定,公民、法人或者其他组织认为具体行政行为侵犯其合法权益的,
最新回复
(
0
)