首页
登录
职称英语
After the violent earthquake that shook Los Angeles in 1994, earthquake sci
After the violent earthquake that shook Los Angeles in 1994, earthquake sci
游客
2024-10-13
20
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 vibration. 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 function of the computer mentioned in the passage is to ______.
选项
A、counterbalance an earthquake’s action on the building
B、predict the coming of an earthquake with accuracy
C、help strengthen the foundation of the building
D、measure the impact of an earthquake’s vibrations
答案
A
解析
作者在第五段申明确指出了计算机的作用:“When the ground shakes and the building tips forward,the computer would force the building to shift in the opposite direction.”,故A 是正确答案。而B 与原文信息不符,C 和D 在文中未提到。
转载请注明原文地址:https://tihaiku.com/zcyy/3800078.html
相关试题推荐
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakesci
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakesci
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakesci
AmassiveearthquakestruckHaitijustbefore5p.m.onJan.12,about10mi
AmassiveearthquakestruckHaitijustbefore5p.m.onJan.12,about10mi
HowmanypeoplediedintheviolentearthquakethatshookLosAngelesin1994?[
HowmanypeoplediedintheviolentearthquakethatshookLosAngelesin1994?[
HowmanypeoplediedintheviolentearthquakethatshookLosAngelesin1994?[
Whendidtheearthquakehappen?[originaltext]Indonesianrescueworkersare
LosAngeleshasallthefollowingnicknamesEXCEPT[br][originaltext]LosA
随机试题
下面你将听到一段关于加拿大国家展览会的介绍。Foundedin1879,theCanadianNationalExhibition
[originaltext]Canyouimaginebeingabletobuysomethingwithjustapenny
后张法预制梁板施工时,当预制梁跨大于( )时,要按规定设置反拱。A.10m
某女患者,40岁,企图自杀,服用大量巴比妥严重中毒,送来医院时,呼吸已经停止。马
上述疾病中,一般转氨酶不升高的是( )。A.急性胆囊炎 B.肝内胆管结石
基本分析法很大程度上依赖于经验判断,其对证券市场的影响难以数量化、程式化,受投资
2×20年1月1日,甲公司以1019.33万元购入财政部于当日发行的3年期、到期
如图所示,SB=100MVA时,线路l的电抗标幺值为0.035。当k1点三相短路
()定额是编制施工预算,加强企业成本管理和经济核算的基础。A、预算 B、人工
根据施工技术交底有关规定,项目开工前向承担施工的负责人或分包人进行书面技术交底的
最新回复
(
0
)