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
2020-01-09
98
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.
【C17】
选项
A、It
B、What
C、You
D、We
答案
A
解析
语义分析题。该空在此句中作主语,根据选项可知该空为代词,联系上下文,只有it符合句意,即“它有助于你自己去看数据”,it指代上文的MARSIS。故答案为[A]。
转载请注明原文地址:https://kaotiyun.com/show/aKe4777K
0
考研英语二
相关试题推荐
WhentheAmericaneconomywasrunningfulltilttwoyearsago,fewplaceswereasbreathlesslydelightedasSeattle.Itsportwa
WhichofthefollowingbestdescribestheAmerica’seconomicsituation?Howdoesmonetarypolicyofferhelpforweakeconomica
WhichofthefollowingbestdescribestheAmerica’seconomicsituation?Whatfactormakesinvestorsputoffinvestinginnewpl
Youshouldn’thavewritteninthe______sincethebookbelongstothelibrary.
WholesalepricesinJulyrosemoresharplythanexpectedandatafasterratethanconsumerprices,【1】thatbusinesseswerestill
Tensofthousandsof18-year-oldswillgraduatethisyearandbehandedmeaninglessdiplomas.Thesediplomaswon’tlookanydiff
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
WilltheEuropeanUnionmakeit?Thequestionwouldhavesoundedstrangenotlongago.Noweventheproject’sgreatestcheerlead
Speakingtwolanguagesratherthanjustonehasobviouspracticalbenefitsinanincreasinglyglobalizedworld.Butinrecentye
随机试题
阅读散文《一棵野豆秧》节选,然后回答问题。那是秋天,我们乘两辆越野车到西藏去,车子整天颠簸在青藏高原漫无涯际的荒滩上,窗外旋转的是一眼望不到边的黄色的地平线,没有树,没有人烟,除了铺向大地尽头的单调的电线杆和低空偶尔掠过一两只大乌鸦外,没有任何明
风湿性心脏瓣膜病患者发热2周,疑有感染性心内膜炎,下列哪项体征对诊断最有帮助
最可能的诊断是为确诊应检测
女性,65岁,慢性咳嗽、咳痰20余年,每年持续3个月以上,以冬季为重。近3年出现活动后气急,偶有双下肢水肿。今日晨起突感右上胸针刺样痛,继之出现呼吸困难,大汗,不能平卧,急来诊。询问病史的重点是
心包压塞体征中不包括
总价合同适用的情况有()。
根据《水利水电工程地质勘察规范》(GB50287—1999),初步设计阶段坝基、坝肩及帷幕线上的基岩钻孔压水试验,当坝高大于200m时,为查明渗透性各向异性的定向渗透试验应采用下列()种水头。
【2014年江苏南通】从违法行为的要素来看,判断行为是否违法的关键要素是该行为有故意或者过失的过错。()
(2010下项管)有关可行性研究的叙述中错误的是______。
_____hommeesttrèshonnête.
最新回复
(
0
)