首页
登录
职称英语
After the violent earthquake that shook Los Angeles in 1994, earthquake scie
After the violent earthquake that shook Los Angeles in 1994, earthquake scie
游客
2024-02-26
4
管理
问题
After the violent earthquake that shook Los Angeles in 1994, earthquake scientists had good news to report: The damage and death toll (死亡人数) could have been much worse.
More than 60 people died in this earthquake. By comparison, an earthquake of similar intensity that shook America in 1988 claimed 25,000 victims.
Injuries and deaths were relatively less in Los Angeles because the quake occurred at 4:31 a.m. on a holiday, when traffic was light on the city’s highways. In addition, changes made to the construction codes in Los Angeles during the last 20 years have strengthened the city’s buildings and highways, making them more resistant to quakes.
Despite the good news, civil engineers aren’t resting on their successes. Pinned to their drawing boards are blueprints (蓝图) for improved quake-resistant buildings. The new designs should offer even greater security to cities where earthquakes often take place.
In the past, making structures quake-resistant meant firm yet flexible materials, such as steel and wood, that bend without breaking. Later, people tried to lift a building off its foundation, and insert rubber and steel between the building and its foundation to reduce the impact of ground vibrations. The most recent designs give buildings brains as well as concrete and steel supports. Called smart buildings, the structures respond like living organisms to an earthquake’s vibrations. When the ground shakes and the building tips forward, the computer would force the building to shift in the opposite direction.
The new smart structures could be very expensive to build. However, they would save many lives and would be less likely to be damaged during earthquakes. [br] The smart buildings discussed in the passage ______.
选项
A、would cause serious financial problems
B、would be worthwhile though costly
C、would increase the complexity of architectural design
D、can reduce the ground vibrations caused by earthquake
答案
B
解析
解题的根据在第六段:The new smart structures could be very expensive to build.However,they would save many lives and would be less likely to be damaged during earthquake.A和C选项在文中没有提到。D项中说到“减轻地震造成的地面波动”与文章中的“对波动作出反应”不一致。故选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3484798.html
相关试题推荐
Theearthquakeleftthousandsofpeople______(急需要医疗照顾).inurgentneedofmedic
FromBostontoLosAngeles,fromNewYorkCitytoChicagotoDallas,museums
FromBostontoLosAngeles,fromNewYorkCitytoChicagotoDallas,museums
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescie
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescie
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescie
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescie
EarthquakeCanScientistsPredictKillerEarthquakes?
EarthquakeCanScientistsPredictKillerEarthquakes?
EarthquakeCanScientistsPredictKillerEarthquakes?
随机试题
Literatureisameansbywhichweknowourselves.Byitwemeet【M1】
EveryChineseschoolchildisdrilledinthemotherland’shistoric"FourInve
Baby-NamingTrends[A]Overthelastfiftyyears,Americanparentshaver
Duringthenineteenthcentury,whenlittlewasknownaboutenvironmental-ism
CT与MRI上骨破坏区显示液液平面,不会见于:A.动脉瘤样骨囊肿 B.内生软骨
以下PPI中,主要代谢酶是CYP3A4的是A.奥美拉唑 B.兰索拉唑 C.雷
甲是一名明星,深受广大群众喜爱,且收入不菲。后来2018年2月4日甲与乙领证结婚
电缆在室外可以直接埋地敷设,经过农田的电缆埋设深度不应小于()。
总包单位从某通信公司承接了一项通信线路工程,经建设单位同意,将其中的100公
某施工单位中标一新建办公楼工程,钢筋混凝土框架结构,总建筑面积9800m2。地上
最新回复
(
0
)