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
2025-05-02
31
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 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 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] It can be inferred from the passage that in minimizing the damage caused by earthquakes attention should be focused on_____.
选项
A、the increasing use of rubber and steel in capital construction
B、the development of flexible building materials
C、the reduction of the impact of ground vibrations
D、early forecasts of earthquakes
答案
C
解析
依据文章第五段第二行。
转载请注明原文地址:https://tihaiku.com/zcyy/4058542.html
相关试题推荐
Anyearthquakethattakesplaceinanyareaiscertainlyregardedasakindofa
Theearthquake_____nothavecomeataworsetimeforthewar-torncountry.A、coul
Beforethedisastrousearthquaketherewas______chaos.A、massiveB、ominousC、susp
Hurricanesareviolentstormsthatcausemillionsofdollarsinpropertydam
Hurricanesareviolentstormsthatcausemillionsofdollarsinpropertydam
Hurricanesareviolentstormsthatcausemillionsofdollarsinpropertydam
Hurricanesareviolentstormsthatcausemillionsofdollarsinpropertydam
Hurricanesareviolentstormsthatcausemillionsofdollarsinpropertydam
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescie
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescie
随机试题
[originaltext]AnenvironmentalgroupcalledtheFoodCommissionisunhappy
TenStrategiesforSuccessAbroadWorkingacrossculture
Insixteenth-centuryItalyandeighteenth-centuryFrance,waningprosperity
Careerplanningdoesnotnecessarilyfollowroutineoflogicalsteps.Eacho
一般情况下中小学主要教学用房设置窗户的外墙,距城市主干道的最小距离是( )。A
激素的半衰期可用来表示激素的( )A.作用起效速度 B.作用起效时间 C.
呕吐,纳少,呃逆,口渴咽干,舌红少苔,脉虚数,胃阴不足证,宜选用的方剂是A.玉
为了防止建筑物在火灾时发生轰然,有效的方法是采用自动喷水灭火系统保护建筑物,闭式
会计师事务所、律师事务所、资产评估机构等中介服务机构未勤勉尽责,所出具的文件有虚
(2014年真题)根据消费税法律制度的规定,下列各项中,应并入白酒的销售额计征消
最新回复
(
0
)