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 mammal (哺乳动物) - warm-blooded, air-breathing, giving birth to its young alive,
The Greatest Mystery of Whales The whale is a mammal (哺乳动物) - warm-blooded, air-breathing, giving birth to its young alive,
admin
2009-05-21
128
问题
The Greatest Mystery of Whales
The whale is a mammal (哺乳动物) - warm-blooded, air-breathing, giving birth to its young alive, sucking them - and, like all mammals, originated on land. There are many signs of this. (51) front flippers (鳍肢) , used for steering and stability, are traces of feet.
Immense strength is built 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 (52) has been estimated at 400 horsepower. One specimen was reported to have (53) a whaling vessel for seven hours at the (54) of eight knots.
An enraged whale will attack a ship. A famous (55) of this was the fate of whaler Essex, which was sunk (56) the coast of South America early in the last century. More recently, steel ships have had their plates buckled (扭曲变形) in the same way. Sperm whales were known to (57) the old-time whaleboats in their jaws and crush them.
The greatest mystery of whales is their diving ability. The sperm whale can (58) the bottom for his favorite food, the octopus (章鱼) . (59) that search he is known to go as far down as 3,200 feet, where the pressure is 1,400 pounds, to the square inch. Doing (60) he will remain submerged (水下的) as long as one hour. Two feats (绝技) are involved in this: storing up enough (61) (all whales are air-breathed) and withstanding the great change in pressure. Just (62) he does it scientists have not determined. It is believed that some of the oxygen is stored in a special system of blood vessels, rather than just held in the lungs. And (63) is believed that a special kind of oil in his head is some sort of compensating mechanism that automatically adjusts the internal pressure of his body. But (64) you can’t bring a live whale into the laboratory for study, no one (65) just how these things work.
选项
A、distance
B、rate
C、voyage
D、sail
答案
B
解析
这里要表达的是蓝鲸能以什么速度来拖这条捕鲸船,在四个选项中只有rate的意思是“速度”,和speed同义。
转载请注明原文地址:https://kaotiyun.com/show/KmUd777K
本试题收录于:
职称英语综合类A级题库职称英语分类
0
职称英语综合类A级
职称英语
相关试题推荐
Thousandsofpeopleperishedinthestorm.
Thefoodisinsufficientforthreepeople.
RoboticHighwayConesAUniversityofNebraskaprofessorhasdevelopedroboticconesandbarrels.(1)Theycanevenbeprogramm
WhydoesthepresidentofSonyCorporationmentionrestaurantsinthefirstparagraph?Whatwilltakeplaceinthenextfewyea
TheGreatestMysteryOfWhalesThewhaleisawarm-blooded,air-breathinganimal,givingbirthtoitsyoungalive,suckingthe
DiningCustomEverylandhasitsowndiningcustom,andtheUnitedStatesisnoexception.Americansfeelthatthefirstrul
ImportanceofthePublicImagePublicimagereferstohowacompanyisviewedbyitscustomers,suppliers,andstockholders,
TheGreatestMysteryofWhalesThewhaleisawarm-blooded,air-breathinganimal,givingbirthtoitsyoungalive,suckingt
TheWeightExperimentNicolaWaltershasbeentakingpartinexperimentsinScotlandtodiscoverwhyhumansgainandlosewe
随机试题
活塞环开口不能朝向活塞推力面处,也不能在活塞销孔对应的位置上。()
国有企业川南商业大楼于2002年拟定改制计划:将资产评估后作价150万元出售,其中105万元出售给管理层人员(共4人),45万元出售给其余45名职工,将企业改制为川南百货有限公司,注册资本150万元。该改制计划于同年12月经有关部门批准实施。原管理层人员宋
拉吊索的索力偏差率超过()时应分析原因,检定其安全系数是否满足相关规范要求,并在结构承载力检算时加以考虑。
木材的强度是各向异性的,无木节等缺陷时正确的排序是:
索赔费用的主要组成部分,同工程款的计价内容相似。按我国现行规定(参见建标[2003]206号《建筑安装工程费用项目组成》),建安工程合同价包括( )。
下列关于简易程序的说法中,错误的是()。
港澳同胞回乡证的有效期为5年。()
2010年11月份,全国餐饮业实现零售额823.1亿元,比2004年同期增长14.5%,占全社会消费品零售总额的13.9%,其增幅高出社会消费品零售总额4个百分点。预计2011年全年餐饮业零售额将达到8800亿元,2011年将突破万亿元大关。从2
关于支点线,下列说法正确的是()。
Ifyoudidn’tknowanybetter,youmightthinkthatStar,Snuppy,CCandANDiwerejustabunchofinterestingnames.You’donly
最新回复
(
0
)