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 Coining? Everyone who lives in San Francisco knows that earthquakes are common in the bay area and they can be
A Great Quake Coining? Everyone who lives in San Francisco knows that earthquakes are common in the bay area and they can be
admin
2013-11-28
67
问题
A Great Quake Coining?
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 earthquake is that the San Andreas faults 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)travel 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 earthquake 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. Analysts suggest that another massive earthquake would cause extensive damage.
People who live there 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.
Scientist will be able to predict the exact time of an earthquake soon.
选项
A、Right
B、Wrong
C、Not mentioned
答案
C
解析
题干大意:科学家很快能预测出地震发生的具体时间。文章没有谈到这方面信息。故答案选C。
转载请注明原文地址:https://kaotiyun.com/show/07Ld777K
本试题收录于:
职称英语理工类A级题库职称英语分类
0
职称英语理工类A级
职称英语
相关试题推荐
WatchingMicrocurrentsFlowWecannowwatchelectricityasitflowsthrougheventhetiniestcircuits.Byscanningthemagnetic
AFactorsLeadingtoEnergyWasteBHomeAppliancesCPropsalstoCutEnergyConsumptionDEnergyConsumptionTestETerawa
AttentiontotheDetails1.Attentiontodetailissomethingeveryonecanandshoulddo--especiallyinatightjobmarket.Bob
TheGroupofSeven,acliqueofCanadianartistspaintingattheturnofthecentury,hasbeencreditedwitharousingawidespre
A.Ford’sOpponentsB.TheAssemblyLineC.Ford’sGreatDreamD.TheEstablishmentoftheCompanyE.Ford’sBiggestC
ComputerMouseThebasiccomputermouseisanamazinglycleverinventionwitharelativelysimpledesignthatallowsustop
Ourjourneywasveryslowbecausethetrainstoppedconstantlyatdifferentvillage.
ImmigrationImmigrationistheactofcomingtoaforeigncountrytolive.Theactofleavingone’scountrytosettleinano
ImmigrationImmigrationistheactofcomingtoaforeigncountrytolive.Theactofleavingone’scountrytosettleinano
TheCaseoftheDisappearingFingerprintsOneusefulanti-cancerdrugcaneffectivelyerasethewhorls(萝状指纹)andothercharact
随机试题
设置会计科目应遵循哪些原则?
溃疡、空洞等的组织缺损由肉芽组织填充治愈:结节性甲状腺肿:
患者,男性,23岁。8天前癫痫大发作后出现纳差,几乎不能进食,恶心呕吐,乏力,伴无尿,尿量在0~50ml/d,无头晕、头痛,无腰痛、尿痛。5天前急诊查尿常规示:白蛋白(+++),红细胞(+++);肾功能检查:BUN17.2μmol/L,Scr:1100
5个月的婴儿由于呼吸困难半天来院急诊。平时体健,3天前突然流涕,轻咳,今晨热退,呼吸急促。体检:T37.8℃,急性病容,喘息,唇周轻紫,呼吸80次/分,脉搏150次/分,两肺呼气延长,闻及干性啰音。患儿呼吸系统主要的病变部位最可能是在
以下哪一项是以患者为中心的医学模式的基本特点()
某社区建立了一个针对单亲妈妈的工作小组。在社工的组织下,这些单亲妈妈们利用业余时间定期会面,开展活动。相互熟悉后,开始深入交流工作、生活、情感、育儿等方面问题,逐步在彼此间建立了固定的联系,逐步走出婚姻的阴影。从社会工作的角度看,该小组属于()。
我国商业银行机构的核心资本包括()。
马克思主义哲学的创立是哲学史上的伟大变革,它正确地解决了人与自然、人与社会即人与世界的关系,从而实现了唯物论和辩证法、唯物主义自然观和历史观的统一。其关键就在于
删除表上一个约束的SQL语句中,不包含关键字________。
A、Satisfied.B、Interested.C、Tired.D、Discouraged.D
最新回复
(
0
)