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
The ocean bottom — a region nearly 2. 5 times greater than the total land area of the Earth — is a vast frontier that even today
The ocean bottom — a region nearly 2. 5 times greater than the total land area of the Earth — is a vast frontier that even today
admin
2015-05-12
22
问题
The ocean bottom — a region nearly 2. 5 times greater than the total land area of the Earth — is a vast
frontier
that even today is largely unexplored and uncharted. Until about a century ago, the deep-ocean floor was completely
inaccessible
, hidden beneath waters averaging over 3, 600 meters deep. Totally without light and subjected to intense pressures hundreds of times greater than at the Earth’s surface, the deep-ocean bottom is a hostile environment to humans, in some ways as forbidding and remote as the void of
outer space
.
Although researchers have taken samples of deep-ocean rocks and sediments for over a century, the first detailed global investigation of the ocean bottom did not actually start until 1968, with the beginning of the National Science Foundation’s Deep Sea Drilling Project(DSDP). Using techniques first developed for the offshore oil and gas industry, the DSDP’s drill ship, the Glomar Challenger, was able to maintain a steady position on the ocean’s surface and drill in very deep waters,
extracting
samples of sediments and rock from the ocean floor.
The Glomar Challenger completed 96 voyages in a 15-year research program that ended in November 1983. During this time, the vessel logged 600,000 kilometers and took almost 20, 000 core samples of seabed sediments and rocks at 624 drilling sites around the world. The Glomar Challenger’s core samples have allowed geologists to reconstruct what the planet looked like hundreds of millions of years ago and to calculate what it will probably look like millions of years in the future. Today, largely on the
strength
of evidence gathered during the Glomar Challenger’s voyages, nearly all earth scientists agree on the theories of plate tectonics and continental drift that explain many of the geological processes that shape the Earth.
The cores of sediment drilled by the Glomar Challenger have also yielded information critical to understanding the world’s past climates. Deep-ocean sediments provide a climatic record stretching back hundreds of millions of years, because they are largely isolated from the mechanical erosion and the intense chemical and biological activity that rapidly destroy much land-based evidence of past climates. This record has already provided insights into the patterns and causes of past climatic change — information that may be used to predict future climates.
Which of the following is true of the Glomar Challenger?
选项
A、It is a type of submarine.
B、It is an ongoing project.
C、It has gone on over 100 voyages.
D、It made its first DSDP voyage in 1968.
答案
D
解析
是非题型。第二段中的the Glomar Challenger做the DSDP’s drill ship的同位语,因而排除A,B项。根据第三段第一句The Glomar Challenger completed 96 voyages…可排除C项。
转载请注明原文地址:https://kaotiyun.com/show/LsMO777K
本试题收录于:
CATTI二级笔译综合能力题库翻译专业资格(CATTI)分类
0
CATTI二级笔译综合能力
翻译专业资格(CATTI)
相关试题推荐
Thelocalgovernmentleadersaremakingeveryeffortto_________theproblemofpoverty.
Itisclearthatwearerapidlybecomingaglobalculture.Newformsofinformationtechnology,intercontinentaltravel,andthe
Newtechnologylinkstheworldasneverbefore.Ourplanethasshrunk.It’snowa"globalvillage"wherecountriesareonlyseco
A、Allthepassengers.B、About1,650.C、52.D、Notsure.B数字信息的找寻和判断。根据原文AboardtheAndreaDoriawere1,706persons,passengersand
HasNancystoppedsmokingnow?
Whichcitygotthemostroomreservationslastsummer?
AreGCSEsthefirstseriousexamforchildrenintheUK?
Xiongan,China.【L1】______ofnationalsignificance.AsChinaentersanewera,Xionganhas【L2】______ofthewholeworld.Wewil
Untilrecently,scientistsknewlittleaboutlifeinthedeepsea,norhadtheyreasontobelievethatitwasbeingthreatened.
Ifbeingcarriedoutsuccessfully,theplanwillcompletelychangethetrafficconditionsinthecity.
随机试题
患者半年前始觉下肢乏力,渐致不能任地,腰脊疲软,头晕耳鸣,口舌干燥,舌红少苔,脉沉细数,应选何方治疗
患者,男,67岁。有慢性胃病病史,近半年来食欲差,伴头晕,乏力。查:血红蛋白70g/L,红细胞1.8×1012/L,白细胞8×109/L,血清铁1000μg/ml。查体:贫血貌,牛肉舌,淋巴结及肝、脾均不大。该患者最可能的诊断是
环境的自净作用有三大作用方式,即
从疾病监测的角度,常规传染病报告属于
A.缩窄性心包炎B.心力衰竭C.肺动脉高压D.二尖瓣脱垂综合征E.二尖瓣狭窄
进食调节包括
患者女,48岁。发现右侧乳房内无痛性肿块1个月。体检:右侧乳房外上象限可扪及一直径约为5cm的肿块,表面不平滑,边界不清,质地硬;局部乳房皮肤凹陷呈酒窝征,同侧腋窝可扪及2个肿大的淋巴结,可被推动,经活组织病理学检查证实为乳癌,拟行乳癌改良根治术。
数据透视表不仅能够按照改变后的版面布局自动重新计算数据,而且能够根据更改后的原始数据或数据源来刷新计算结果。()
【2015.陕西汉中】下列关于遗忘规律表达不正确的是()。
中华文化有四个特点:统一性、连续性、多样性和__________。(对外经济贸易大学2016)
最新回复
(
0
)