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
考研
On the surface, Mars is the picture of desolation. A barren land remains【C1】______for hundreds of millions of years, motionless【
On the surface, Mars is the picture of desolation. A barren land remains【C1】______for hundreds of millions of years, motionless【
admin
2020-03-21
60
问题
On the surface, Mars is the picture of desolation. A barren land remains【C1】______for hundreds of millions of years, motionless【C2】______the scattering of powdery dust by a faint breeze. But perhaps just【C3】______the Martian soil, the picture is very different.
New evidence suggests the presence of a lake one mile beneath the ice-coated surface of Mars’s south【C4】______, according to new research published Wednesday in Science. Scientists say the lake【C5】______20 kilometers across, and is one meter in【C6】______The findings, if【C7】______, would mark the detection of the largest body of【C8】______water on Mars today.
The data comes from Mars Express, a European spacecraft that【C9】______Mars for 15 years.【C10】______a high-resolution camera snapped stunning images of the surface, a radar instrument probed what was【C11】______underground.
The instrument—the Mars Advanced Radar for Subsurface and Ionosphere Sounding, or MARSIS【C12】______—emits radio waves toward the planet. The waves penetrate the Martian surface and bounce off【C13】______material they come in contact with, then reflect back to the spacecraft. MARSIS【C14】______the echoes of the radio waves, which scientists can then【C15】______to decipher the composition of the subsurface.
Starting in May 2012, MARSIS【C16】______more than three years pinging a region at Mars with radio waves.【C17】______helps to look at the data yourself. In addition to an illustration that shows how Mars Express【C18】______Mars, the image【C19】______what’s called a radargram, a picture of different materials, molded out of radio waves. The thick, gray line at the top is the planet’s surface. The squiggles below that are a【C20】______of ice and dust.
【C16】
选项
A、cost
B、spent
C、costed
D、spended
答案
B
解析
固定搭配题。这里表示的是“MARSIS花时间做……”,而且后面还有动词-ing形式的pinging作为提示,虽然选项都有“花费”的意思,但是动词形式正确,又可以后接动词-ing形式的只有[B]。
转载请注明原文地址:https://kaotiyun.com/show/FnY4777K
0
考研英语二
相关试题推荐
Animportantfactorofleadershipisattraction.Thisdoesnotmeanattractivenessintheordinarysense,forthatisabornqua
Accordingtothepassage,thefactthatyoungpeopleseemtobelosinginterestinscience______.Theword"disparity"(Paragr
Youstillneedsomesubstantialexamples______supportofyourargument,orfewpeoplewillbelieveinyouridea.
Thepopulationwillbeincreasingveryfastunlessthey______withnewmethodstodealwithit.
Overthepastdecade,manycompanieshadperfectedtheartofcreatingautomaticbehaviors-habits-amongconsumers.Thesehabits
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
Afewdecadesago,theworldbankingcommunityinventednewElectronicFundsTransfer(EFT)systemstomovemoneymoreefficiently
ReadthefollowingtextandanswerthequestionsbychoosingthemostsuitablesubheadingfromthelistA-Gforeachnumberedpa
Scientistsoftenstruggletocommunicatethefindingsofresearch.Oursubjectmattercanbetechnicalandnoteasilydigestedb
随机试题
有一曲柄滑块机构,滑块的行程为500mm,求曲柄长度。
在心房和心室的泵血活动中()
______wewilldonextisstillunderdiscussion.
有关Ⅱ型超敏反应的叙述,错误的是
佝偻病的颅骨软化多见于
男性,36岁,已婚,因龟头部赘生物1周就诊,在其龟头及冠状沟部可见数个乳头瘤样小丘疹,表面潮湿柔软,呈污灰色,承认有不洁性接触史,醋酸白试验阳性,其最可能的诊断为
多栏式现金和银行存款日记账可以清晰地反映现金和银行存款收付业务的来龙去脉,并且可以简化总账的登记工作。()
资产负债表是基本财务报表之一,其作用主要表现为()。
有权依照法定的程序对通信进行检查的是()。
______writingaletter,hedecidedtohaveaface-to-facetalkwiththemanager.
最新回复
(
0
)