首页
登录
职称英语
The opinion of many engineers is that the architects that designed the New Y
The opinion of many engineers is that the architects that designed the New Y
游客
2024-05-10
25
管理
问题
The opinion of many engineers is that the architects that designed the New York World Trade Center Twin Towers did a good job in. designing the buildings. The buildings were safe from the hazards (47)______ at the time. Indeed, they were designed to withstand the force of aircraft that might crash into them. They were not however, designed to withstand the effects of the very high temperatures generated by the (48)______ of tons of aviation fuel carried by the aircraft.
Steel (49)______ covered with concrete is the main structural component of the towers and steel loses a lot of structural strength when heated to 1100 degrees Centigrade and beyond, as it was. To (50)______ the steel the towers’ beams were coated with a few centimeters of concrete. That insulation was to provide structural (51)______ for at least 1 hour of fire. The towers met that test. The south tower lasted 62 minutes. The north; 103 minutes. Tragedy followed when not all could escape prior to the collapse.
Most experts agree that the Twin Towers were very well designed. Many also agree that the people planning the attacks were very (52)______ and aimed the aircraft at a height that would effect the most damage. The aircraft crash, and the resulting fuel fed fires were aimed at about the 90th floor. That was just high enough to insure that the upper floors would weaken with the heat and crack down, dropping into the (53)______ part of the building.
The mass of the falling top floors created such a falling load that some experts estimate it (54)______ by 5 to 10 times normal bearing loads. The effect was like a giant hammer, each floor (55)______ more weight to be born by the next floor down.
Were the Trade Towers well designed? Engineers say yes. But the public refers to the belief that architects will never again design a tall building without considering the effects of terrorist attacks of all (56)______ kinds. That not only includes the ability of the structure to withstand attack but the means to allow the buildings’ occupants to escape in time to survive
Word Bank:
A. exceeded I. collision
B. ignition J. contributing
C. strictly K. lightly
D. practical L. knowledgeable
E. integrity M. replace
F. shield N. potential
G. remaining O. happened
H. envisioned
[br]
选项
答案
K
解析
本空应填副词修饰后置定语中的过去分词covered。根据50后的the towers’ beams were coated with a few centimeters of concrete可知,钢铁梁架上只是薄薄地覆盖了一层混凝土,因此选项K. lightly符合题意。C. strictly不能修饰动词cover。
转载请注明原文地址:https://tihaiku.com/zcyy/3592331.html
相关试题推荐
Inmyopinion,playingvideogames___________________________(既花费大量的时间也有害健康).
TheopinionofmanyengineersisthatthearchitectsthatdesignedtheNewY
TheopinionofmanyengineersisthatthearchitectsthatdesignedtheNewY
TheopinionofmanyengineersisthatthearchitectsthatdesignedtheNewY
TheopinionofmanyengineersisthatthearchitectsthatdesignedtheNewY
TheopinionofmanyengineersisthatthearchitectsthatdesignedtheNewY
[originaltext]CorntonValeisanewprisonspeciallydesignedforwomenin
[originaltext]CorntonValeisanewprisonspeciallydesignedforwomenin
Opinionsvarywidelyconcerningworkplaceromance.Someorganizations,onth
Opinionsvarywidelyconcerningworkplaceromance.Someorganizations,onth
随机试题
[originaltext]Announcer:Helloandwelcometotoday’sshow,Linda’sGarden.Tod
在环境温度低于4℃的地区,建设一座地下车库,采用干式自动喷水灭火系统保护,系统的
汉族民歌的主要类型是()。A.双声 B.小调 C.山歌 D.田歌 E.劳
A.麻疹病毒肺炎 B.呼吸道合胞病毒肺炎 C.肺炎支原体肺炎 D.金黄色葡
某基础工程划分4个施工过程(挖基槽、作垫层、混凝土浇筑、回填土)在5个施工段组织
Thechangeinthatvillagewasmiraculou
对苏维埃文化教育总方针的描述不正确的是( )A.强调教育与生产劳动相结合 B
根据银行公司信贷产品的三层次理论,银行在与重点客户签订银行合作协议时,为其提供包
商业银行下列做法不正确的是( )。A.销售不能独立测算的理财计划 B.设置理
(2020年真题)根据税收征收管理法律制度的规定,纳税人对税务机关作出的罚款决定
最新回复
(
0
)