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 the
The Greatest Mystery Of Whales The whale is a warm-blooded, air-breathing animal, giving birth to its young alive, sucking the
admin
2012-09-10
24
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(51)of this. Its front flippers (鳍状肢), used for steering and stability, are traces of feet.
Immense strength is(52)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(53)400 horsepower. One specimen was reported to have towed (拖) a whaling vessel for seven hours at the(54)of eight knots (节).
An angry whale will(55)a ship. A famous example of this was the fate of whaler Essex,(56)was sunk off the coast of South America early in the last century. More recently, steel ships have(57)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(58)of whales is their diving ability. The sperm whale dives to the bottom for his(59)food, the octopus (章鱼). in that search he is known to go as far down as 3,200 feet, where the(60)is 1,400 pounds, to a square inch Doing so he will(61)underwater long as one hour. Two special skills are involved in this: storing up enough(62)(all whales are air-breathed) and tolerating the great change in pressure. Just how he does it scientists have not(63). It is believed that some of the oxygen is stored in a special(64)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 compensating mechanism that(65)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.
选项
A、interest
B、job
C、danger
D、mystery
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/WqLd777K
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
FermiProblemOnaMondaymorninginJuly,theworld’sfirstatombombexplodedinNewMexicodesert.Fortysecondslater,t
NaturalMedicinesSinceearliestdays,humanshaveusedsomekindsofmedicines.Weknowthisbecausehumanshavesurvived.
Smokingisnotpermittedintheoffice.
AAttractionsofTravellingBLanguageProblemWhenEatingOutCRevolutionCausedbyJetsDHowTravellers’ConcernsAreMe
Below600feetoceanwatersrangefromdimlylittocompletelydark.
AHarmScreeningMayDotoaYoungerWomanBInvestigatingtheEffectofScreeningCEffectsPredictedbyTwoDifferentMo
IDislikeFillingupFormsOfallthingsintheworld,Imostdislikefillingupforms;infact,Ihaveapositivehorroro
WaterFromthebeginning,waterhasfurnishedmanwithasourceoffoodandahighwaytotravelupon.Thefirst(51)arosewhere
I’vealwaysbeencautiousaboutgivingpeoplemyphonenumber.
FirstSelf-containedHeartImplantedApatientonthebrinkofdeathhasreceivedtheworld’sfirstself-containedartificia
随机试题
原房屋纳税人把房卖给甲,由甲纳税,这种情况属于()。
安心保险公司通过对轿车市场的调研,决定针对容易发生事故的婴儿推出一款新的保险种类,并提供双语咨询、协助就医等特色服务。同时保险公司基于效率原则积极优化办公手续。安心公司推出的上述业务体现的战略创新类型包括()。
川崎病的主要临床表现有()、()、()、()、()、()。
A.M受体B.N1受体C.N2受体D.α受体E.β受体
根据世界银行工程造价构成的规定,其中项目直接建设成本中不包括()。
A县的赵某去B县旅游,因抱怨当地的饭菜太难吃,被B县公安机关处以行政拘留15天的行政处罚,赵某不服,可以向B县人民法院提起行政诉讼。()
中国国际旅行社总社成立于()
不过,科技带来的媒介变革颠覆了我们曾经引以为荣的生存意义。追求真理曾是数千年人类文明所孜孜以求的终极意义。人类就是在这种不断试错的过程中向真理逼近。然而,博客世界里没有真理,也不好这一口。每个人都是自己的佛,没有什么可以供你去信奉。更可气的是,个人主导的率
与α1=[1,2,3,-1]T,α2=[0,1,1,2]T,α3=[2,1,3,0]T都正交的单位向量是________.
[A]Talkabouttheirpassion[B]Donotleavethemalone[C]Dowhattheylove[D]Understandthem[E]Talktothem
最新回复
(
0
)