首页
登录
职称英语
The ocean bottom—a region nearly 2.5 times greater thanthe total land area
The ocean bottom—a region nearly 2.5 times greater thanthe total land area
游客
2023-12-16
43
管理
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 accessible, hidden 【M1】______
beneath waters averaging over 3,600 meters deep. Totally without
light and subjected intense pressures hundreds of times greater 【M2】______
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 out space. 【M3】______
Therefore researchers bare been taking samples of 【M4】______
deep-ocean rocks and sediments for over a century, the first
detailed global investigation of the ocean bottom did actually 【M5】______
start until 1968, with the beginning of the National Science
Foundation’s Deep Sea Drilling Project (DSDP).
Used techniques first developed for the offshore oil and 【M6】______
gas industry, the DSDP’s drill ship, the Glomar Challenger,
was able to maintain a steady position on the ocean’s surface
and drill very deep waters, extracting samples of sediments 【M7】______
and rock from the ocean floor.
The Glomar Challenger’s core samples have allowed geologists
to reconstruct that the planet looked like hundreds 【M8】______
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 with 【M9】______
the theories of plate construction and continental drift that
explain many of the’ geological processes that shape on the 【M10】______
Earth [br] 【M5】
选项
答案
did∧actually改成not
解析
根据上下文,此处应为否定,与后面的until呼应,构成“not...until”的结构,意为“直到1968年,才开始第一次详尽的全球范围的海底考察”。
转载请注明原文地址:https://tihaiku.com/zcyy/3278775.html
相关试题推荐
Justafewshortmonthsago,theUSeconomywasaworker’sparadise:nearlyu
Justafewshortmonthsago,theUSeconomywasaworker’sparadise:nearlyu
Justafewshortmonthsago,theUSeconomywasaworker’sparadise:nearlyu
TheSupremeCourt’srecentdecisionallowsregionalinterstatebankstodoaw
TheSupremeCourt’srecentdecisionallowsregionalinterstatebankstodoaw
TheSupremeCourt’srecentdecisionallowsregionalinterstatebankstodoaw
Theoceanbottom—aregionnearly2-5timesgreaterthanthetotallandarea
Theoceanbottom—aregionnearly2-5timesgreaterthanthetotallandarea
Theoceanbottom—aregionnearly2-5timesgreaterthanthetotallandarea
Theoceanbottom—aregionnearly2-5timesgreaterthanthetotallandarea
随机试题
ButsomebookswouldcostmorethanIhave.ButIdidn’t______tobuysomebooks
Beijing:TheUnitedStatesandNorthKoreahadtheirfirst【L1】______infour
[originaltext]W:Hey,Tom!Iheardthatyouareauditingatthehistoryclass.
Thewordlaserstandsfor"lightamplificationbystimulatedemissionofrad
故障报警状态:表示火灾报警控制器的主备电或监控的现场设备等发生故障时所处的工作状
近年来.党中央、国务院把大力发展文化产业作为推动文化大发展大繁荣的战略选择之一.
在影响药物治疗有效性的因素中,不属于药物影响因素的是A、病理状态 B、药物
长期投资资金周转快,流动性好,风险较高,盈利能力强。( )
受聘于商品基金经理(CPO),主要负责帮助CPO挑选商品交易顾问(CTA),监督
排钠效价最高的利尿药是A.氢氯噻嗪 B.呋塞米(呋喃苯胺酸) C.螺内酯
最新回复
(
0
)