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 Great Quake Coming? Everyone who lives in San Francisco knows that earthquakes are common in the Bay Area--and they can be
A Great Quake Coming? Everyone who lives in San Francisco knows that earthquakes are common in the Bay Area--and they can be
admin
2011-01-10
57
问题
A Great Quake Coming?
Everyone who lives in San Francisco knows that earthquakes are common in the Bay Area--and they can be devastating.In 1906,for example,a major quake destroyed about 28,000 buildings and killed hundreds,perhaps thousands of people.Residents now wonder when the next“Big One”will strike.It’s bound to happen someday.At least seven active fault(断层)lines run through the San Francisco area. Faults are places where pieces of Earth’s crust(地壳)slide past each other.When these pieces slip,the ground shakes.
To prepare for that day,scientists are using new techniques to reanalyze the 1906 earthquake and predict how bad the damage might be when the next one happens.
One new finding about the 1906 quake is that the San Andreas fault split apart faster than scientists had assumed at the time.During small earthquakes,faults rupture(断裂)at about 2.7 kilometers per second.During bigger quakes,however.ruptures can happen at rates faster than 3.5 kilometers per second.
At such high speeds,massive amounts of pressure build up,generating underground waves that can cause more damage than the quake itself.Lucky for San Francisco,these pressure pulses(脉冲)traveled away from the city during the 1906 event.As bad as the damage was,it could have been far worse.
Looking ahead.scientists are trying to predict when the next major quake will occur.Records show that earthquakes were common before 1906.Since then,the area has been relatively quiet.Patterns in the data,however,suggest that the probability of a major earthquake striking the Bay Area before 2032 is at least 62 percent.
New buildings in San Francisco are quite safe in case of future quakes.Still,more than 84 percent of the city’s buildings are old and weak.Analyses suggest that another massive earthquake would cause extensive damage.
People who live there today tend to feel safe because San Francisco has remained pretty quiet for a while.According to the new research,however.it’s not a matter of“if”the Big One will hit.It’s just a matter of when.
Earthquakes rarely happened in San Francisco before 1906.
选项
A、Right
B、Wrong
C、Not mentioned
答案
B
解析
在第五段第二句提到:Records show that earthquakes were common before 1906.(记录显示在1906年之前地震是十分常见的。)因此可推知,“极少发生地震”的叙述不正确,故此题为“错误”的。
转载请注明原文地址:https://kaotiyun.com/show/ZcQd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
PublicRelationsPublicrelationsisabroadsetofplannedcommunicationsaboutthecompany,includingpublicityreleases,
OldandActiveItiswell-knownthatlifeexpectancyislongerinJapanthaninmostothercountries.A【C1】______reportalso
ABiologicalClockEverylivingthinghaswhatscientistscallabiologicalclockthatcontrolsbehavior.Thebiologicalcloc
EasyLearningStudentsshouldbejealous.Notonlydobabiesgettodozetheirdaysaway,butthey’vealsomasteredthefineart
TheDangersofSecondhandSmokeMostpeopleknowthatcigarettesmokingisharmfultotheirhealth.Scientificresearchshows
TheDangersofSecondhandSmokeMostpeopleknowthatcigarettesmokingisharmfultotheirhealth.Scientificresearchshows
A.ColorfulLifeonCampusB.IntelligentStudentBodyC.ExcellentAdministrationD.DistinguishedFacultyE.SubstantialFinancial
BacteriaBacteriaareextremelysmalllivingthings.Whilewemeasureourownsizesininchesorcentimeters,bacterialsize
MediaandCurrentEventsThemediacanimpactcurrentevents.AsagraduatestudentatBerkeleyinthe1960s,Iremembere
Einstein’sTheoryofRelativitywassoprofoundthatonlyafewscientistscouldunderstandit.
随机试题
我国当前教学的基本组织形式是______,特殊形式是______。
去除支配骨骼肌的神经后,再用新斯的明对骨骼肌的影响是
《建筑法》明确规定,实行监理的建筑工程,由建设单位委托具有( )的工程监理企业实施监理。
【2006年真题】用于控制建设工程质量的静态分析方法是()。
资产的流动性与收益性成反比,为了获得较高收益,应把尽量多的资产投入股票。()
下列不能够作为提存标的物的是()。
“既见树木又见森林”是指观察的()。
根据下列材料回答问题。2013年,我国研究生招生61.1万人。在学研究生179.4万人,毕业生51.4万人。普通本专科在校生2468.1万人,毕业生638.7万人。中等职业教育在校生1960.2万人,毕业生678.1万人。普通高中在校生2435.9万人,
汉字代码体系中处于人机界面,支持汉字输入的代码为(9)。
在中国的南方和北方,饮食差异很大,也就是说,北方厨师(chef)所烹饪的菜肴口味更重,而在南方的食谱(recipe)中,菜肴的味道相对清淡。有时我们说南方菜肴的美味在于它的甜度和新鲜。在中国的一些省份,如宁夏、河北、四川、陕西和云南,餐食多为辣味,这是由于
最新回复
(
0
)