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
2013-11-20
76
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.
【C3】
选项
A、at
B、in
C、of
D、with
答案
A
解析
at表示“(速度、比率等)以,达”;horsepower表示“马力”。
转载请注明原文地址:https://kaotiyun.com/show/74Qd777K
本试题收录于:
职称英语理工类B级题库职称英语分类
0
职称英语理工类B级
职称英语
相关试题推荐
OntheTrialoftheHoneyBadgerOnarecentfieldtriptotheKalahariDesert,ateamofresearcherslearnalotmoreabout
Theirparentsoncelivedunderverysevereconditions.
ThirstforOilWorldwideeveryday,wedevourtheenergyequivalentofabout200millionbarrelsofOil.Mostoftheenergy
BreakfastStudiesshowthatchildrenwhoeatbreakfastdobetterinschool.Itdoesn’ttakemuchfurtherthoughttobelieve
TeachingandLearningMedicineAwardTwoscientistswhohavewonpraiseforresearchintothegrowthofcancercellscouldb
TeachingandLearningMedicineAwardTwoscientistswhohavewonpraiseforresearchintothegrowthofcancercellscouldb
HowTwoGreatConflictsHelpedtoChangeEuropeNinetyyearsagoonasunnymorninginNorthernFrance,somethinghappenedt
AdaptationofLivingThingsCertainanimalsandplantsdevelopcharacteristicsthathelpthemcopewiththeirenvironmentbe
WHO:ManyChildren’sDeathsPreventableOverfivemillionchildrendieeachyearfromdisease,infectionsandaccidentsrelat
随机试题
恶性通货膨胀的年通胀率达()
A.左结肠动脉B.右结肠动脉C.中结肠动胁D.回结肠动脉E.乙状结肠动脉横结肠的动脉来自()
属TI-Ag的物质是
根据《建设工程项目管理规范》(GB/T50326-2006),项目经理的权限有()。
证券市场监管的经济手段是指通过运用()等经济手段对证券市场进行干预。
一张信用证的受益人要求原证的通知行或其他银行以原证为基础,另开一张内容相似的信用证称为()。
一般纳税人销售货物暂按简易办法依照3%征收率计算缴纳增值税的情形有()。
下列说法中正确的是:
(2011年第18题)在下面横线处,填入对修辞方法及其作用的正确表述。“一分钟之内,她讲了这么多话。纯正的北京方言,那股特有的柔和劲儿,有股子甜味。听她讲话,简直像在嚼一串北京的冰糖葫芦。”以上文字______。
TCP是一个面向连接的协议,它提供连接的功能是(14)的,采用(15)技术实现可靠数据流的传送。为了提高效率,又引入了滑动窗口协议,协议规定重传(16)的分组,这种分组的数量最多可以(17),TCP协议采用滑动窗口协议来解决了(18)。
最新回复
(
0
)