Oceanography has been defined as The application of all sciences to the study of 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 expection of early intercontinental travellers 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 questions 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 of the mute to estimate the length of cable that had to be manufactured.
连连看(下列abcdef是上文着色单词的解释，但顺序已打乱。请找出正确的对应关系，按数字顺序重新排列字母，如deacfb)
a.
b.a short description that gives important details about a person, a group of people, or a place
c.
d.one part of a situation, idea, plan etc that has many parts
e.someone who is mute does not speak, or refuses to speak
f.
g.to suggest something as a plan or course of action
h.relating to the study of ideas, especially scientific ideas, rather than with practical uses of the ideas or practical experience
i.far from towns or other places where people live
j.
k.going from one continent to another, or happening between two continents
答案：jhdcikgbeaf
Oceanography: n. 海洋学
theoretical: a. 理论上的
aspect: n. 方面,外貌,外观
reluctant: a. 不情愿的,勉强的
remote: a. 偏僻的,遥远的,远程的
intercontinental: a. 大陆间的,洲际的
propose:v. 计划,打算,向...提议
profile: n. 侧面,轮廓,人物素描v. 描绘...轮廓,评论人物n. 概要,人物简介
mute:n. 哑子,默音字母,弱音器a. 哑的,无声的,沉默的
cable: n. 电缆,海底电报v. 打海底电报
manufacture:n. 产品,制造,制造业v. 制造vt. 制造,加工
The first time that the questions What is at the bottom of the occeans? had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed.
分析结构：主语The first time，后面跟一个很长的定语，定语中的主语是 the questions What is at the bottom of the occeans?，谓语had to be answered，谓语的状语with any commercial consequence，was是系动词，when引导的从句做was的表语.
参考翻译：当有人建议铺设贯穿欧洲和美国的通讯电缆时，海底有什么的问题第一次必须从商业意义上作出回答。