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
Oceanography has been defined as" The application of all sciences to the study of the sea". Before the nineteenth century, s
Oceanography has been defined as" The application of all sciences to the study of the sea". Before the nineteenth century, s
admin
2018-09-25
26
问题
Oceanography has been defined as" The application of all sciences to the study of the sea".
Before the nineteenth century, scientists with an interest in the sea were few and far between. Certainly Newton considered some theoretical aspects of it in his writing, but he was reluctant to go to sea to further his work.
For most people the sea was remote, and with the exception of early intercontinental travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone to ask what lay beneath the surface.
The first time that question" What is at the bottom of the oceans?" had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile(起伏形状)of the route to estimate the length of cable that had to be manufactured.
It was to Maury of the US Navy that the Atlantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings(测声)were taken to investigate the depths of the North Atlantic and Pacific 0-ceans. Later, some of his findings aroused much popular interest in his book. The Physical Geography of the Sea.
The cable was laid, but not until 1866 was the connection made permanent and reliable. At the early attempts, the cable failed and when it was taken out for repairs it was found to be covered in living growths, a fact which defied contemporary scientific opinion that there was no life in the deeper parts of the sea.
Within a few years oceanography was under way. In 1872 Thomson led a scientific expedition(考察), which lasted for four years and brought home thousands of samples from the sea. Their classification and analysis occupied scientists for years and led to a five - volume report, the last volume being published in 1895.
This passage is mainly about______.
选项
A、the beginnings of oceanography
B、the laying of the first undersea cable
C、the investigation of ocean depths
D、the early intercontinental communications
答案
A
解析
主旨题,这篇文章主要关于海洋学的开端,故答案选A。
转载请注明原文地址:https://kaotiyun.com/show/NX3O777K
0
成人本科学位英语
相关试题推荐
IreturnedtoAbuja,thecapitalofNigeria,aftercollegegraduation.Ihadbeentherebeforemymotherbecameaminister.
Ifyouthinkthattreatingawomanwellmeansalways______herpermissionforthings,thinkagain.
In______reviewof44studies,Americanresearchersfoundthatmenandwomenwhoatesixkeyfoodsdailycuttheriskof______hea
SpeakerA:Well,it’sgettinglate.Maybewecouldgettogethersometime.SpeakerB:______.
Itisdifficulttoimaginewhatlifewouldbelikewithoutmemory.(79)Themeaningsofthousandsofeverydayperceptions,theba
Evenachildknowsthatnoddingheadmeans"Yes".Butsomepeoplewouldprobably【C1】______whentheyfirstcametoIndia.Whenth
Televisionhaschangedthelifestyleofpeopleineveryindustrializedcountryintheworld.IntheUnitedStates,wheresociolo
Birth,marriageanddeath:thesearethegreatesteventsinhumanlife.Manythings,goodandbad,canhappentousinourlives
Whichofthefollowingitalicizedpartsisasubjectclause?
Studythefollowingcartooncarefullyandwriteanessayonit.Inyouressay,youshould(1)describethecartoonbriefly:(2)a
随机试题
厨房消防设备主要由________和化学灭火设备组成。
甲公司向乙公司出售一批商品,并签订供销合同。甲公司按期供货后,根据供货合同和发货单,采用异地托收承付结算方式结算货款。乙公司于3月21日接到付款通知,3月24日填制拒付理由书拒绝付款,认为合同中未事先约定明确的结算方式,且收款委托中也未注明合同号,后经双方
男,52岁,扩张型心肌病,出现心力衰竭。使用地高辛后出现频发多源性室性期间收缩,心力衰竭无明显好转,血电解质未见异常。此肘最好用下列哪种方法治疗心力衰竭
A.复合先露B.脐带先露C.脐带脱垂D.脐带缠绕E.帆状胎盘胎膜未破,脐带位于胎先露以下,诊断为
属于对抗贮存法的饮片有()。
组织的定义包括的基本要素有()。
甲企业从证券交易所以每股10元的价格购入某上市公司股票10000股,准备作为短期投资,另付有关税费750元,已知每股价格中包含0.5元已宣告但尚未发放的现金股利。甲企业取得该项短期投资时,应记入“交易性金融资产——成本”科目的金额不正确的是(
甲公司为增值税一般纳税人,适用增值税税率为17%,原材料按实际成本核算,2018年12月初,A材料账面余额90000元,该公司12月份发生的有关经济业务如下:(1)5日,购入A材料1000千克,增值税专用发票上注明的价款300000元,增值税税额5100
Mostofusspendourlivesseekingthenaturalworld.Tothis【C1】______wegofishing,sitinthegarden,drinkoutsideratherth
Inthebeginning,yourkidsneedyou—alot.They’reattachedtoyourhip,allthetime.Itmightbeamonth.Itmightbefiveye
最新回复
(
0
)