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
2013-04-06
108
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 writings, 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 the 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 (测深) were taken to investigate the depths of the North Atlantic and Pacific Oceans. 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.
The aim of the voyages Maury was responsible for in the 1840 was ______.
选项
A、to make some sounding experiments in the oceans
B、to collect sample of sea plants and animals
C、to estimate the length of cable that was needed
D、to measure the depths of the two oceans
答案
D
解析
事实判断题。文章第4段提到,19世纪40年代,Maury负责推动进行测深工作的海上航行,以此来探测北大西洋与太平洋的深度,故选D。
转载请注明原文地址:https://kaotiyun.com/show/vWr7777K
0
大学英语四级
相关试题推荐
NewresearchconductedbybrainresearcherAviKarnioftheUniversityofHaifainIsraelexploresthepossibilitythatnapshel
A、ThepeopleinNewYorkwerenotveryefficient.B、Mr.Smithenjoyedlivinginprison.C、TheonlywayforMr.Smithtosupport
A、CoursesinBritishhistory.B、Languagecourses.C、Coursesinsports.D、Teachertrainingcourses.B
Thisisforpeoplewhoareinterestedinadoptingalow-fatlifestyleorforthosewhoarealreadylivingalow-fatlifestyle.
Auctions(拍卖)arepublicsalesofgoods,conductedbyanofficiallyapprovedauctioneer.Heaskedthecrowdtogatherintheauc
NaturalgasVehiclesKermittheFrogoncesaid,"It’snotthateasybeinggreen."Althoughhewasn’treferringtocars,hiso
The"standardofliving"ofanycountrymeanstheaverageperson’sshareofthegoodsandserviceswhichthecountryproduce.A
The"standardofliving"ofanycountrymeanstheaverageperson’sshareofthegoodsandserviceswhichthecountryproduce.A
A、Eatingsomesalad.B、Havingasandwich.C、Readingabook.D、Drinkingcoffee.DWhatwasthespeakerdoingintherestaurantwhe
随机试题
在公诉案件中适用当事人和解需要具备以下哪些条件?()
(华沙公约》规定,国际航空运输过程中出现的诉讼,其时效为自航空器到达或应该到达之日或自运输停止之日起()
夏季,某绵羊群放牧后出现食欲减退、体温升高、可视黏膜苍白等症状。剖检见肝脏肿大、出血,在腹腔和肝脏中发现扁平叶状幼虫,该病可能是
A.骨髓B.胸腺C.法氏囊D.扁桃体E.哈德氏腺某猪场,2月龄猪高热稽留。剖检病死猪可见回盲瓣口“纽扣状”溃疡。对同群发病猪活体进行病原学检测时应采集的免疫器官是
下列关于管间吻合定义的描述,正确的是
治疗外感表证兼有食积者,宜选用的药物是
治疗指数窄,使用过程中应监测国际标准化比值(INR),并将其稳定控制在20~30的药品是()。
甲同学利用新鲜的玉米绿色叶片进行“叶绿体色素提取和分离”实验,在滤纸上出现了四条清晰的色素带,其中呈黄绿色的色素带为______。
教育目的是教育活动的核心部分,它不仅对个人产生影响,而且对社会也产生影响。()
[*]
最新回复
(
0
)