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
Most earthquakes occur within the upper 15 miles of the earth’s surface. But earthquakes can and do occur at all depths to about
Most earthquakes occur within the upper 15 miles of the earth’s surface. But earthquakes can and do occur at all depths to about
admin
2016-12-06
34
问题
Most earthquakes occur within the upper 15 miles of the earth’s surface. But earthquakes can and do occur at all depths to about 460 miles. Their number decreases as the depth increases. At about 460 miles one earthquake occurs only every few years. Near the surface earthquakes may run as high as 100 in a month, but the yearly average does not vary much. In comparison with the total number of earthquakes each year, the number of disastrous earthquakes is very small.
The extent of the disaster in an earthquake depends on many factors. If you carefully build a toy house with an Erector set, it will still stand no matter how much you shake the table. But if you build a toy house with a pack of cards, a slight shake of the table will make it fall. An earthquake in Agadir, Morocco, was not strong enough to be recorded on distant instruments, but it completely destroyed the city. Many stronger earthquakes have done comparatively little damage. If a building is well constructed and built on solid ground, it will resist an earthquake. Most deaths in earthquakes have been due to faulty building construction or poor building sites. A third and very serious factor is panic. When people rush out into narrow streets, more deaths will result.
The United Nations has played an important part in reducing the damage done by earthquakes. It has sent a team of experts to all countries known to be affected by earthquakes. Working with local geologists and engineers, the experts have studied the nature of the ground and the type of most practical building code for the local area. If followed, these suggestions will make disastrous earthquakes almost a thing of the past.
There is one type of earthquake disaster that little can be done about. This is the disaster caused by seismic sea waves, or tsunamis.(These are often called tidal waves, but the name is incorrect. They have nothing to do with tides.)In certain areas, earthquakes take place beneath the sea. These submarine earthquakes sometimes give rise to seismic sea waves. The waves are not noticeable out at sea because of their long wave length. But when they roll into harbours, they pile up into walls of water 6 to 60 feet high. The Japanese call them "tsunamis", meaning "harbour waves", because they reach a sizable height only in harbours.
Tsunamis travel fairly slowly, at speeds up to 500 miles an hour. An adequate warning system is in use to warn all shores likely to be reached by the waves. But this only enables people to leave the threatened shores for higher ground. There is no way to stop the oncoming wave.
Which of the following Can Not be concluded from the passage?
选项
A、The number of earthquakes is closely related to depth.
B、Roughly the same number of earthquakes occur each year.
C、Earthquakes are impossible at depths over 460 miles.
D、Earthquakes are most likely to occur near the surfaces.
答案
C
解析
根据第1段的第3句可以排除A;根据第1段的第5句可排除B;根据第1段的第1句可排除D。根据第1段的第2句可确定C的内容不符合文章内容,所以本题选C。
转载请注明原文地址:https://jikaoti.com/ti/nDnMFFFM
0
专业英语四级
相关试题推荐
Schoolstartedona______colddayinFebruary.
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttowalkingthreetofivemilesaday.Today,the【C1】____
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttowalkingthreetofivemilesaday.Today,the【C1】____
Fiftyyearsago,mostpeople’sdailylevelsofactivitywereequivalenttowalkingthreetofivemilesaday.Today,the【C1】____
Womendriversaremorelikelytobeinvolvedinanaccident,accordingtoscientists.Researchers【C1】______6.5millioncar
Womendriversaremorelikelytobeinvolvedinanaccident,accordingtoscientists.Researchers【C1】______6.5millioncar
Ifyourcar______anyattentionduringthefirst12months,takeittoanauthoriseddealer.
Aboutonethousandstudentspassedtheentranceexaminationforpostgraduate,manyof______ladies.
TheCharmingCharacterofSwedes性格可爱的瑞典人AllsocialoccasionsinSwedenareregulatedbyrulesandtraditions./Andtheset
AcademicResearchandProjectDesignI.Introduction—【T1】isaspringofcreationwhileinterestisapowersourcefor【T1】_____
随机试题
男性,40岁,胸痛、反酸、烧心、嗳气2个月,胃镜检查食管黏膜未见明显异常,最有助于明确诊断的检查是
该患者目前高热最可能的原因是为进一步明确病因检查首选
国际间接投资是指发生在国际资本市场中的投资活动,包括()。
下列单位可以作为“经营单位”填报的是()。
根据《证券投资顾问业务暂行规定》,证券公司、证券投资咨询机构的人员从事证券投资顾问业务时,应当()。Ⅰ.忠实客户利益,切实维护客户合法权益Ⅱ.遵守法律、行政法规的规定Ⅲ.遵循诚实信用原则,勤勉、审慎的为客户提供证券投资顾问服务Ⅳ
某市工商银行2003年取得如下经营业务收入:(1)由上级银行借入外汇资金后贷给国内用户,收取的利息;(2)通过融资租赁方式向承租者收取的租赁费;(3)为客户提供经济服务收取的手续费和代垫、代收代付的邮电费;(4)转让
劳动监察是由法定的专门机关对劳动和社会保障法律法规的实施情况进行的监督检查,这是劳动监察的()属性。
建设社会主义先进文化对公民素质的综合要求是有理想、有道德、有文化、有纪律,它们之间的关系是
数据流图(DFD)中的有向箭头(→)表示
IntroductiontoandRequirementsforPsychologyCourse1.CoursecontentIntroductiontothestudyofthe【T1】【T1】______Topics:
最新回复
(
0
)