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
A、Switzerland. B、Japan. C、Turkey. D、Italy. B
A、Switzerland. B、Japan. C、Turkey. D、Italy. B
admin
2022-04-25
42
问题
Bridges have been around for an awfully long time. The oldest ones are stone because it’s a very durable material. The Pont Du Gard is a wonderful example—Roman Aqueduct in the south of France—fantastic piece of technology built using massive stones put together, dry—there’s no mortar in those joints.
Or sometimes up in the mountains, people would build these suspension bridges, often across some dizzy canyon, using a vine. In this case, this is in Peru. This is using grass which grows locally and is woven into ropes to build these bridges. And do you know they rebuild them every year? Because grass is not a durable material. So this bridge is unchanged since Inca times. And bridges can be symbols of their location. Of course, Golden Gate and Sydney are well familiar.
In Mostar the bridge was synonymous with the name of the place, and to such an extent that in the war in 1993 when the bridge was destroyed, the town all but lost its identity until the bridge was reconstructed. And bridges are enormous features in our landscape—not just enormous, sometimes just a small one, and I believe we have a duty to make our bridges beautiful. Thankfully, many people do. Think of the stunning Millau Viaduct in the south of France. French engineer Michel Virlogeux and British architect Lord Foster collaborated together to produce something which is a really spectacular combination of architecture and engineering. Or Robert Maillart’s Salginatobel Bridge in the mountains in Switzerland—absolutely sublime.
Or more recently, Laurent Ney’s beautiful and rather delicate bridge for Tintagel Castle in the UK. Bridges can be considered in three convenient categories, depending on the nature of the structural system that they adopt as their principal support. So, bending, of course, is the way a beam will behave—so, beams and bending. Or compression is the principal way of operating for an arch. Or for the really long spans you need to go lightweight, and you’ll use tension, cables—suspension bridges.
The longest at the moment is in Japan. It’s just under 2,000 meters—one span. The Akashi Kaikyō Bridge. We’re currently working on one in Turkey which is a bit longer, and we’ve designed the Messina Bridge in Italy, which is just waiting to get started with construction one day.
Question 16. What do we learn about the stone bridges?
Question 17. What do we learn about Millau Viaduct?
Question 18. According to the speaker, which country has the longest bridge right now?
选项
A、Switzerland.
B、Japan.
C、Turkey.
D、Italy.
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/M5x7777K
0
大学英语六级
相关试题推荐
A、Havingarestfrequentlyduringtheday.B、Thelackofsleeponweekends.C、Thelackofexerciseintheevening.D、Eatingchee
ThephenomenonthatChinesepeoplepaygreatattentiontochildrencanbesupportedbymanycustomarypractices.Amongthem,"On
A、Thefrequenttraindelays.B、Thefoodsoldonthetrains.C、ThemonopolyofBritishRailways.D、Thehightrainticketfares.C
A、Parents.B、Children.C、Payscales.D、Managementsystems.C
A、Heconductslarge-scaletests.B、Hewritesbooksaboutchildren.C、Heteachesattheuniversity.D、Herecommendsbabysitters.
A、Sheengagedinfieldresearchonenvironmentalprotection.B、Shehelpedfamiliestomoveawayfromindustrialpolluters.C、She
A、Avisittoaprison.B、Theinfluenceofhisfather.C、Atalkwithsomemiserableslaves.D、HisexperienceinthewarbetweenF
A、Tosavemoneyonfood.B、Tobuyfoodwithoutadditives.C、Todoallhisshoppinginoneplace.D、Tomeetotherhealthconsciou
A、Watchherpartner.B、Playhercardsincooperationwithherpartner.C、Quitthegame.D、Teachthemanhowtoplaybridge.A选项均
A、Traintravelcanhelphimknowaboutpeople.B、Traintravelisanuncomfortableexperienceforhim.C、Traintravelisbettert
随机试题
在Java中,冠以属性文件,下列选项中的说法错误的是()。
A.少量阴道流血,伴轻微下腹痛,子宫颈口未开B.阴道出血量和贫血程度不一致,伴腹痛C.妊娠晚期或临产时无痛性反复阴道出血D.分娩阻滞,剧烈疼痛,宫缩停止,病情恶化E.妊娠产物完全排出,阴道流血停止胎盘早剥
下列关于结核病的叙述错误的是()。
容积恒定的车胎内部气压要维持恒定,那么车胎内空气质量最多的季节为()。
世界各国现行的质量认证制度有八种类型,其中()制度是一种比较全面、比较完善的认证形式。它一直是ISO向各国推荐的一种认证形式,也是目前各国普遍使用的第三方认证的一种制度。
监察工作应当实行()相结合。
A、 B、 C、 D、 A题干中第一列图形的封闭空间数是4;第二列图形的封闭空间数是5,第三列图形的前两个图形的封闭空间数是3,故问号处的图形的封闭空间数也应该是3,排除选项B、C、D。故选A。
生态移民是指为了保护某个地区特殊的生态或让某个地区的生态得到修复而进行的移民,也指因自然环境恶劣,不具备就地扶贫的条件而将当地人民整体迁出的移民。根据上述定义,下列属于生态移民的是:
在关系数据库的基本操作中,从表中取出满足条件的元组操作称为______;把两个关系中相同属性值的元组联接到一起形成新的二维表的操作称为______;从表中抽取属性值满足条件列的操作称为______。
Whatdoesthespeakermean?
最新回复
(
0
)