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
专升本
Perhaps there is only the moon to compare with it. Of all the achievements of American engineering, only the landing on the moon
Perhaps there is only the moon to compare with it. Of all the achievements of American engineering, only the landing on the moon
admin
2013-05-22
42
问题
Perhaps there is only the moon to compare with it. Of all the achievements of American engineering, only the landing on the moon and the planting there of a wrinkled flag can rival the construction of Panama Canal as an epoch-making accomplishment. The Suez Canal, the trans-Siberian Railroad and the Taj Mahal all pale beside it. The canal’s construction is more closely akin to the pyramids of Egypt in its scope and difficulty of execution, but in the modern era, there is only the moon.
Like the landing on the moon, the construction of a canal across the narrow Isthmus of Panama was a dream long before it became reality. As early as 1534, Charles I of Spain proposed a canal at Panama, but it would take nearly 400 years for builders to catch up with his imagination.
When the canal finally was proposed required all the creativity the twentieth century could muster. It was the largest public work ever attempted. Its engineers had to control a wild river, cut the continental divide, construct the largest dam and man made lake known to that date and swing the largest locks ever constructed from the biggest cement structures then poured. Along the way, two of the world’s most devastating diseases had to be wiped out in one of their greatest strongholds. And all of this was to be done without the airplane or the automobile: Kitty Hawk rose into the head-lines in 1903——the same year the U. S. signed a treaty with Panama——and there was no read across the isthmus until the World War Ⅱ.
If Panama has had an unusual role in bygone dreams, it most certainly has a startling relationship to the hard facts of geography. The country is farther east than most people imagine——the canal and about half of Panama actually lie east of Miami. Because of the country’s shallow "S" shape and east-west orientation, it has places where the sun rises in the Pacific and sets in the Atlantic. More significantly, Panama is squeezed into the narrowest portion of Central. At the canal, just 43 miles of land separate Atlantic and Pacific shores. Perhaps even more important, Panama offers the lowest point in the North American continental divide——originally 312 feet above sea level at the canal’s Culebra Cut. By comparison, the lowest pass in the United States is nearly 5,000 feet.
In scope and difficulty, the canals construction was most closely alike to that of the ______.
选项
A、Suez Canal
B、trans-Siberian Railroad
C、Taj Mahal
D、pyramids of Egypt
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/C4eC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Generationgapreferstothedifferenceinideas,feelings,andinterestsbetweentheolderandyoungerpeople.Itisespecially
Mostchildrenwithhealthyappetitesarereadytoeatalmostanythingthatisofferedtothemandachild’srarelydislikesfoo
Mostchildrenwithhealthyappetitesarereadytoeatalmostanythingthatisofferedtothemandachild’srarelydislikesfoo
TwomenonatouringholidayofBritainwereinjuredbyanexplosionintheirmotorvaninthecentreofNorwichyesterday.
Anewcameasasurprisethatanelderlywomandiedyesterdayafter【21】knockeddownbyamotoristwhohadmadeno【22】tobrake(刹
Tounderstandthemarketingconcept,itisonlynecessarytounderstandthedifferencebetweenmarketingandselling.Nottooma
Allthatwereallyneedtoplotoutthefutureofouruniverseareafewgoodmeasurements.Thisdoesnotmeanthatwecansitd
Wateris______hydrogenandoxygen.
随机试题
《食品卫生法》对人的效力原则是
抑郁发作的核心症状是
商务谈判策略有上千种之多,根据不同出发点,可分为不同种类的谈判策略。下列属于根据战争模式分类的谈判策略有()。
15世纪,意大利商业城市中的证券交易主要是()的买卖。
新股定价发行按价格优先、同等价位时间优先原则决定认购成功者。()
党的十九大报告指出:保障和改善民生要抓住人民最关心最直接最现实的利益问题,既尽力而为,又量力而行,一件事情接着一件事情办,一年接着一年干。这要求中国共产党()
教育活动与其他社会活动最根本的区别在于()。
依据暗示原理创立了暗示教学模式的教育家是()。
求微分方程x(y2一1)dx+y(x2一1)dy=0的通解.
Musicandliterature,thetwotemporalarts,contrivetheirpatternofsoundsintime;or,inotherwordsofsoundsandpauses.
最新回复
(
0
)