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
The Greatest Mystery of Whales The whale is a warm-blooded, air-breathing animal, giving birth to its young alive, sucking t
The Greatest Mystery of Whales The whale is a warm-blooded, air-breathing animal, giving birth to its young alive, sucking t
admin
2014-03-13
25
问题
The Greatest Mystery of Whales
The whale is a warm-blooded, air-breathing animal, giving birth to its young alive, sucking them—and, like all mammals, originated on land. There are many【C1】______of this. Its front flippers(鳍状肢), used for steering and stability, are traces of feet.
Immense strength is【C2】______into the great body of the big whales, and in fact most of a whale’ s body is one gigantic muscle. The blue whale’ s pulling strength has been estimated【C3】______ 400 horsepower. One specimen was reported to have towed(拖)a whaling vessel for seven hours at the【C4】______of eight knot(节).
An angry whale will【C5】______. A famous example of this was the fate of Whaler Essex, 【C6】______was sunk off the coast of South America early in the last century. More recently, steel ships have【C7】______their plates buckled(使弯曲)in the same way. Sperm whales(抹香鲸)were known to seize the old-time whaleboats in their jaws and crush them.
The greatest【C8】______of whales is their diving ability. The sperm whale dives to the bottom for his 【C9】______food, the octopus(章鱼). In that search he is known to go as far down as 3, 200 feet, where the 【C10】______is 1, 400 pounds to a square inch. Doing so he will【C11】______underwater as long as one hour.Two special skills are involved in this storing up enough【C12】______(all whales are air-breathed)and tolerating the great change in pressure. Just how he does it scientists have not【C13】______. It is believed that some of the oxygen is stored in a special【C14】______of blood vessels, rather than just held in the lungs. And it is believed that a special kind of oil in his head is some sort of a compensating mechanism that 【C15】______adjusts the internal pressure of his body. But since you can’t bring a live whale into the laboratory for study, no one knows just how these things work.
【C13】
选项
A、witnessed
B、determined
C、applied
D、calculated
答案
B
解析
这里是说关于鲸鱼为什么能够在水下承受巨大的压力,科学家们还没有找到答案。选项中的determine的意思是“确定”,此词放入空格处意思讲得通,其他几个选项讲不通,故选B。witness见证;apply运用;calculate计算。
转载请注明原文地址:https://kaotiyun.com/show/moGd777K
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
Theauthoriskindtothechildrenbecauseshewantedtoplayanimportantroleinthechildren’slives.Attheendofthispas
HighwaysintheUSTheUnitedStatesiswell-knownforitsnetworkofmajorhighwaysdesignedtohelpadrivergetfromoneplac
AnimalIntelligenceAreAnimalsintelligent?Iftheyare,whichanimalsarethemostintelligent?Thesearenoteasyquestionst
MindThoseMannersontheSubwaySo,thereyouare,justsittingthereinthesubwaycar,enjoyingthatbookyoujustbought.(4
BeingthinornotNowomancanbetoorichortoothin.ThissayingoftenattributedtothelateDuchessofWindsorembodies
PaperorPlastic?TakeawalkalongtheChesapeakeBay,andyouarelikelytoseeplasticbagsfloatinginthewater.Theyh
SmokingCanIncreaseDepressiveSymptomsinTeensWhilesometeenagersmaypuffoncigarettesto"self-medicate"againstt
TakingaNapduringtheDayMedicalexpertssaymostAmericansdonotgetenoughsleep.TheysaymoreAmericansneedto【51】
TakingaNapduringtheDayMedicalexpertssaymostAmericansdonotgetenoughsleep.TheysaymoreAmericansneedto【51】
Thechildrentrembledwithfearwhentheysawthepoliceman.
随机试题
淋病的病原体是
下列项目中,属于流动资产的有()。
相对于欧式看跌期权而言,美式看跌期权()
根据《个人所得税法》规定,2008年3月,若个人收入超过( )元,应缴纳个人所得税。
丫口周家鸿两座山对折的地方,就是丫口。村里人荷锄而出,冲着丫口响起渐渐远行的脚步,那其中,必定有苍老的牛,送行的狗。翻过丫口,这一切却又在金色晨光中迷蒙。丫口是繁复世界,精彩、诱人,却遥远。对于村庄,最亲近的只有
20世纪的中国作家对自身创作有着自觉的选择,他们自觉地以中华民族国民性改造为己任,以______沉睡的国民为其毕生努力的方向。可以说,自觉于国民性的关注与改造是20世纪中国文学______的主题。填入划横线部分最恰当的一项是:
下面关于嵌入式处理芯片生产厂商的叙述中,错误的是()。
NowitseemsAmerica’sloveaffairwithBarbiemaybecomingtoanend-USsalesofBarbiefell15%inthefirstquarterthisye
A、Shewasaskedtoleadagroupofinexperiencedcaversthere.B、Itwasthefirstcavethatshehadevervisited.C、Clearlymark
Thereweremanylawenforcementofficialspatrollingthestreetsduringthefirstdaysoftheban.
最新回复
(
0
)