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
97
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.
【C20】
选项
A、system
B、group
C、max
D、mix
答案
D
解析
语义分析题。根据上文可知,这里要表达的是“混合物”,[A]“系统”,[B]“群组”,[C]“最大数”均不符合文意,故选[D]。
转载请注明原文地址:https://kaotiyun.com/show/hnY4777K
0
考研英语二
相关试题推荐
Animportantfactorofleadershipisattraction.Thisdoesnotmeanattractivenessintheordinarysense,forthatisabornqua
Studythefollowingchartscarefullyandwriteanessayinwhichyoushould:1)describethechartsbriefly,2)interpretthec
TheoutbreakofswinefluthatwasfirstdetectedinMexicowasdeclaredaglobalepidemiconJune11,2009.Itisthefirstworld
IthasbeenawretchedfewweeksforAmerica’scelebritybosses.AIG’sMauriceGreenberghasbeendramaticallyoustedfromthef
WholesalepricesinJulyrosemoresharplythanexpectedandatafasterratethanconsumerprices,【1】thatbusinesseswerestill
Itlookedjustlikeanotheraircraftfromtheoutside.Thepilottoldhisyoungpassengersthatitwasbuiltin1964.Butappear
TheUnitedStateshashistoricallyhadhigherratesofmarriagethanthoseofotherindustrializedcountries.Thecurrentannual
Homeworkhasneverbeenterriblypopularwithstudentsandevenmanyparents,butinrecentyearsithasbeenparticularlyscorn
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
Everyone,itseems,hasahealthproblem.AfterpouringbillionsintotheNationalHealthService,Britishpeoplemoanaboutdir
随机试题
诊断早期妊娠需测定的血或尿中的激素是
水疝相当于西医学的什么病
原发性血小板增多见于( )。
【背景资料】某城市桥梁工程由某路桥工程公司承担施工任务。该路桥工程公司在预应力筋的施工过程中,通过计算确定了下料长度,并采用先张法对预应力筋进行张拉,并对施加预应力所用的机具设备及仪表设置专人使用管理,并制订定期维护和校验制度。在对大体积混凝土墩台基
关于银行卡账户及交易管理要求的下列表述中,不正确的是()。
下列关于农村金融机构的说法,正确的有()。
(2016年真题)孟老师近期工作比较消极,漠视学生的存在,对学生态度麻木,缺乏应有的尊重。依据职业倦怠的特征,孟老师的这些表现属于()。
NewYorkandLondonmayruletheroost,butotherfinancialhubsinAmericaandEuropehavemanagedtocarveoutusefulspecial
牙周袋位于牙槽嵴顶下方,与牙槽骨垂直吸收有关者为()。
Inthepast,oneofthebiggestdisadvantagesofmachineshasbeentheirinabilitytoworkonamicro-scale.Forexample,doctor
最新回复
(
0
)