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
41
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、In
B、On
C、By
D、At
答案
A
解析
search前面的介词用in,in that search在这一搜寻过程中。
转载请注明原文地址:https://kaotiyun.com/show/4mUd777K
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
CellPhone:HanguporKeepTalking?Millionsofpeopleareusingcellphonestoday.Inmanyplacesitisactuallyconsidere
InBritainandmanyothercountriesappraisalisnowatoolofmanagement.
TheTiniestElectricMotorintheWorld1.Scientistsrecentlymadepublicthetiniestelectricmotoreverbuilt.Youcouldstuf
EveryDogHasItsSayKimikoFukuda,aJapanesegirl,alwayswonderedwhatherdogwastryingtosay.Wheneversheput
Whatdoestherecentpollshow?WhichofthefollowingwasNOTaconstraintonone’schoiceofsoulmateintheolddays?
WhydoesthepresidentofSonyCorporationmentionrestaurantsinthefirstparagraph?Whatwilltakeplaceinthenextfewyea
Withthehelpofthespace-shuttle-carriedradar,archeologistsfound"They"inthesecondlineofthelastparagraphrefersto
TheGreatestMysteryOfWhalesThewhaleisawarm-blooded,air-breathinganimal,givingbirthtoitsyoungalive,suckingthe
Peopledidnotbegintouseunmannedvehiclesinunderseaexplorationuntilrecentlybecauseof______.Whichofthefollowingi
Whatdoesthepassagemainlydiscuss?Whichofthefollowingstatementsaboutthesalinityofabodyofwatercanbestbeinfer
随机试题
甲、乙两厂一直共同生产A产品至今。由于该产品在国外畅销,且受国内用户欢迎,甲乙两厂均各自安排生产一部分产品供应国内市场。数月前,乙在报纸上刊登一则声明。在声明中,乙称:A产品商标已在商标局注册。为维护A产品商标信誉和乙的合法权益,现要求未经乙同意的
下列教材中的作品,哪一首诗属于七律()
A.肺性发绀B.心性混血发绀C.淤血性发绀D.缺血性发绀E.混合性发绪缩窄性心包炎可见
患者,男,76岁。患“高血压”10余年,今春自觉经常头晕耳鸣,腰膝无力,走路轻飘飘不平稳今晨起床后突然眩晕仆倒,左半身无力不能行走,口眼喁斜,语言謇涩,舌红苔腻,脉弦滑。辨证为()
提插补泻法中,泻法的操作手法是()
路基填土不得使用()和盐渍土。
无风险利率γF是由时间创造的,是对承担风险δρ的补偿。( )
下列关于国家住房公积金的说法,正确的是()。
侦查人员在现场传唤犯罪嫌疑人,应当遵循以下哪些规定?()
《原道觉世训》
最新回复
(
0
)