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
Earthquake is a shaking of the ground caused by the sudden breaking and the shifting of large sections of the earth’s rocky oute
Earthquake is a shaking of the ground caused by the sudden breaking and the shifting of large sections of the earth’s rocky oute
admin
2013-01-03
62
问题
Earthquake is a shaking of the ground caused by the sudden breaking and the shifting of large sections of the earth’s rocky outer shell.
Earthquakes are among the most powerful events on earth, and their results can be terrifying. A severe earthquake may re-lease energy 10,000 times as great as that of the first atomic bomb. Rock movements dur-ing an earthquake can make rivers change their courses. Earthquakes can trigger landslides that cause great damage and loss of life. Large earthquakes beneath the ocean can create a series of huge, destructive waves called tsunamis that flood coasts for many miles.
Earthquakes almost never kill people directly. Instead, many deaths and injuries in earthquakes result from falling objects and the collapse of buildings, bridges, and other structures. Fire resulting from broken gas or power lines is another major danger during a quake. Spills of hazardous chemicals are also a concern during an earthquake.
The force of an earthquake depends on how much rock breaks and how far it shifts.
Powerful earthquakes can shake firm ground violently for great distances. During minor earthquakes, the vibration may be no greater than the vibration caused by a passing truck.
On average, a powerful earthquake occurs less than once every two years. At least 40 moderate earthquakes cause damage somewhere in the world each year. About 40,000 to 50,000 small earthquakes-large enough to be felt but not damaging-occur annually.
When an earthquake occurs, ______.
选项
A、people are killed and injured
B、rocks are breaking and shifting
C、destructive waves flood the coasts for miles
D、large sections of the earth’s rocky outer shell suddenly break and shift
答案
D
解析
由开头第一句可知,地震产生的原因是由于大面积的地壳岩层的突然破裂和移动所致。故选D。
转载请注明原文地址:https://kaotiyun.com/show/GXDO777K
0
成人本科学位英语
相关试题推荐
Imusttrytomake______asIcanofthisprojectwhichIhaveundertaken.
Youwouldn’texpectanInformationAgecompanylikeInteltogetonthewrongsideofenvironmentalists,butthecompany’srecen
WheneverIhaveanappointment,Iliketoarrive______.
Somepsychologistsmaintainthatmentalactssuchasthinkingarenotperformedinthebrainalone,butthatone’smusclesalso
OnehundredandthirteenmillionAmericanshaveatleastonebank-issuedcreditcard.Theygivetheirownersautomaticcrediton
Formanywomenchoosingwhethertoworkornottoworkoutsidetheirhomeisaluxury;theymustworktosurvive.Othersfacea
NeitherTomnorI______abletoinformAnnatogotocinemaontime.
Agoodartist(like)agoodengineer(learns)as(many)fromhismistakesasfrom(success).
会上有人建议任命一个十一人委员会来制定新章程。
—Wouldyoudomeafavourandgivemearide?—______.
随机试题
某高校外语教研室新招进五位外语老师,每位老师只教授一门外语,并且满足以下条件:(1)如果小钱教德语,那么小孙不教俄语。(2)或者小李教德语,或者小钱教德语。(3)如果小孙不教俄语,那么小赵不教法语。(4)或者小赵教法语,或者小周不教英语。以下选项如
对细菌性痢疾病人应采取隔离措施,隔离期为【】
女,39岁,向心性肥胖,月经紊乱,乳房萎缩,喉结肥大。经检查:血浆ACTH 374pmol/ml(17pg/dl),尿17-羟皮质类固醇1241μmol/L。诊断最可能是
A、低渗性脱水B、等渗性脱水C、高渗性脱水D、低钾血症E、高钾血症粘连性肠梗阻病人,呕吐频繁,脉搏细弱,血压下降( )。
下列诊断盆腔动脉血管疾病最佳序列是
社会保障的核心内容是()
关于民事、行政枉法裁判罪与徇私枉法罪的界限,下列哪些说法是正确的?()
受压构件,两端铰支,其临界力为50kN,若将构件改为两端固定,则其临界力为()kN。
TherecentsocialandeconomicchangesintheUShavegreatimpactonalltheAmericanhousingsystem.
假定你是学校的实习生带队老师Helen,暑假将有一批学生跟随你去广州实习,请写一个通知,简单介绍一下实习期间需要注意的事项。内容主要包括:1.实习期间要服从带队老师的安排;2.严格遵守实习单位的规章制度;3.实习期间学生不能私自出游,如有特殊情况,
最新回复
(
0
)