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
2021-02-21
81
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/EGY4777K
0
考研英语二
相关试题推荐
America’seconomicrecoveryremainsuncomfortablyweak.Thelatestdatashowindustrialproductionfallingwhilethetradedefic
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
随机试题
提到汽车的安全性,很多人会想到沃尔沃;谈到超市,沃尔玛似乎已经成为很多都市消费者的首选。这种现象主要体现了企业的()
要素膳复水后的pH为()。
甲饲养了一条名叫“黑豹”的藏獒,用绳索拴在家门口。路过甲家门口的乙(23岁)见到“黑豹”后,听说藏獒都比较厉害,想要见识见识,便拿石头向“黑豹”扔,愤怒的“黑豹”挣破铁索,将放学回家路过的丙(10岁)咬伤。乙见状溜之大吉。丙的同学丁(10岁)见状立即打车(
存款按照支取的方式不同,可分为()。
在同国外游客讲解梁山伯与祝英台或许仙与白娘子时,可以将其称为中国的罗密欧与朱丽叶,这种类比法称为()
游客不得在托运行李或随身携带物品内夹带的物品有()。
化学实践活动有哪些内容和形式?
下面不属于算术运算符的是()。
设f(t)连续,区域D={(x,y)|x|≤1,|y|≤1},求证:
Duringthediscussion,Mr.Boydremainedsilentwhenaskinghisopinion.
最新回复
(
0
)