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
专升本
Oceanography has been defind as "The application of all sciences to the study of the sea". Before the nineteenth century scienti
Oceanography has been defind as "The application of all sciences to the study of the sea". Before the nineteenth century scienti
admin
2014-01-26
24
问题
Oceanography has been defind 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 a-long to ask what lay beneath the surface. The first time that the question " What is at the bottom of the ocean?"had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineer 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 Adantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings(测水深)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, 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 beginning 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
纵观全文,主要讲述了海洋学的开端,故选A。
转载请注明原文地址:https://jikaoti.com/ti/lKmGFFFM
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
设
求函数y=lg(1—2x)的反函数及反函数的定义域.
Theyhavedevelopedtechniqueswhichare______tothoseusedinmostfactories.
______fortheirhelp,wewouldnothaveovercomethedifficulties.
Ifyou______thatlatemovielastnight,youwouldn’tbesleepynow.
Thereismuchdiscussiontodaywhethereconomicgrowthisdesirable.Atanearlierperiod,ourdesireformaterialwealthmayha
Youshouldneverloseyourheartwhen______withtemporarydifficulties.
Women’sDaymarkstheroleofwomeninboththepastandthepresent.Itwasstartedto【B1】______theimportanceofworkingwomen
Hehadfalleninlovewithherpictureevenbeforehemether.HiswifehadagreatinfluenceonTwain’slaterbooks.
"Afteryou,please!"thegentlemensaidpolitelytotheladywhentheycametotheentrance.
随机试题
诺思悖论
抗结核药物中INH的成人常规每日用量是
女,30岁。左腰部受伤后出现腰痛和镜下血尿,生命体征稳定,应考虑
药物从片剂等固体制剂在规定的溶剂中溶出的速度与程度,一般称为
A.法律B.行政法规C.部门规章D.地方政府规章国务院常务会议通过的《中药品种保护条例》是()。
下列各项中,不属于核心一级资本的是()。
企业出口的下列应税消费品中,属于消费税出口免税并退税范围的是()。
下列自然灾害及其可能的成因搭配正确的有()。
若事务T1对数据D1已加排它锁,事务T2对数据D2已加共享锁,那么事务T2对数据D1(45);事务T1对数据D2(46)。(45)
Heissostubbornthatnoonecan______(成功地说服他放弃那一计划).
最新回复
(
0
)