首页
登录
职称英语
Oceanography has been defined as" The application of all sciences to the stu
Oceanography has been defined as" The application of all sciences to the stu
游客
2025-03-02
25
管理
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. [br] 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:http://tihaiku.com/zcyy/3979098.html
相关试题推荐
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
Shesentherapplicationtotheuniversitylastweek,but_____anyresponseupto
Bigdatacanbedefinedasinformationthatistoobigorcomplextobeconta
Bigdatacanbedefinedasinformationthatistoobigorcomplextobe
Bigdatacanbedefinedasinformationthatistoobigorcomplextobe
Bigdatacanbedefinedasinformationthatistoobigorcomplextobe
Ifa◇bisdefinedas[img]2022m10x/ct_ve01203002m_egmatqchoose_0011_221020[/im
Forallintegersaandb,theoperation@isdefinedasa@b=(-a+b)(b+a).Ifa=2an
IfkSnisdefinedtobetheproductof(n+k)(n-k+1)forallpositiveinteg
随机试题
To:willsg@utsc.comFrom:mmaven@environgroup.netSubject:Confirmation-Thank
Whatinstitutionisthemanworkfor?[br][originaltext]W:Youareworkingfor
皮影戏(shadowplay)是中国的一种民间艺术,拥有悠久的历史。皮影戏所需要的演员是用牛皮做的皮影人形,由一个或几个人控制着,并用光将它们反射到幕
合同是项目管理的依据。
以下关于工程水文的叙述,正确的是()。A.下蚀作用是山区公路水毁的重要动因 B
成人每次身体活动时间建议至少应达到()A.10分钟 B.30分钟 C.6
一年前A社区成立了青年人环保小组,相邻的8社区成立了老年人合唱小组,社会工作者计
十七届三中全会提出的农村改革发展任务是()。 A.全面建设农村小康社会 B.
固定连接体与基牙在近中或远中面的接触区面积不应小于A.1mm2 B.2mm
某机构对农场进行某方面的调查,先按照某种规则把总体分为不同的层,然后在不同的层内
最新回复
(
0
)