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
37
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、favorite
B、fast
C、new
D、sufficient
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/XqLd777K
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
LifeExpectancyintheLastHundredYearsAhundredyearsago,lifeexpectancyindevelopedcountrieswasabout47;intheea
FermiProblemOnaMondaymorninginJuly,theworld’sfirstatombombexplodedinNewMexicodesert.Fortysecondslater,t
Shehasagreatcapacityforlearninglanguages.
HowtheBodyKeepstheSameTemperatureThetemperatureofyourbodyshouldbealwaysjustthesame,nomatterwhethertheweath
AHarmScreeningMayDotoaYoungerWomanBInvestigatingtheEffectofScreeningCEffectsPredictedbyTwoDifferentMo
Weknowfromthepassagethatthewhalestraveled6,000milesfromtheArctictotheinletsofBaja______.Accordingtothepa
FootballFootballis,Isuppose,themostpopulargameinEngland:onehasonlytogotooneoftheimportantmatchestoseethi
Theyhadnowaytodisposeofthehazardouswastetheyproducedintheprocessofthecarmanufacture.
AssoonasJenniferaskedhisnameandaddressthemanrangoff.
Theyonlyhavealimitedamountoftimetogettheirpointsacross.
随机试题
Whenwillthespeakerrequestanadvertisement?
Ⅲ°烧伤,烧伤程度可达
男,43岁。反复咳嗽,咳脓痰10年,加重5天入院。吸烟史15年,已戒10年。查体:右下肺可闻及较多湿啰音及少量哮鸣音。可见杵状指。胸部X线片示右下肺纹理增粗、紊乱。该患者应首先考虑的诊断是
A.中成药B.中药饮片C.口服泡腾剂D.血液制品E.中药材根据《城镇职工医疗保险用药范围管理暂行办法》特殊适应症与急救、抢救需要时,才可以纳入基本医疗保险用药的药品是
进口日期栏应填:境内目的地栏应填:
衍生产品是其价值决定于一种或多种基础资产或指数的金融合约,下列不属于常见的衍生产品的是()。
2015年1月,住建部印发了《住房城乡建设部关于加快培育和发展住房租赁市场的指导意见》(以下简称《意见》)。《意见》要求,建立住房租赁信息政府服务平台。搭建住房租赁信息政府服务平台,是各市县房地产管理部门职能所在,是政府引导市场的重要手段。建立政府服务平台
灯节,即正月十五放花灯,故称“上元节”,或称()。
Opportunity机会Theairwebreatheissofreelyavailablethatwetakeitforgranted./Yetwithoutitwecouldnotsurvivem
HowAdvertisementIsDone?A)Whenwechooseawordwedomorethangiveinformation;wealsoexpressourfeelingsaboutwha
最新回复
(
0
)