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
25
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
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’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
MillionsofAmericansandforeignersseeG.I.Joeasamindlesswartoy,thesymbolofAmericanmilitaryadventurism,butthat’
随机试题
1957年整风运动的主题是()
储存在轴突末梢内小而具有致密中心的突触小泡内的是
急性化脓性阑尾炎病人术后第2天体温升至38.2℃,最可能的原因是()。
女婴,7个月。近1周易激惹,烦躁不安,呕吐2次,大便稀,2次/日,查体:嗜睡,前囟膨,有张力,颈强(±),心肺正常,布氏征(+),巴氏征(±)。为明确诊断,应做哪项检查
下列各项中,属于对预收、预付款项的清查应采用的方法的是()。
中国证监会领导干部离职后______年内,一般工作人员离职后______年内,不得到与原工作业务直接相关的机构任职。()
商业银行总行应当在销售前()日,将相关材料向中国银监会负责法人机构监管的部门或属地银监局报告。
传播、培育和践行社会主义核心价值观,非常重要的一个方面是要充分发掘“身边事的教育”和“身边人的感动”作用。大学校训以及办学过程中师生在实践中不断涌现的典型事例和先进人物,正是难得的既,______又感人的素材。填入画横线部分最恰当的一项是:
受原材料涨价影响,某产品的总成本比之前上涨了,而原材料成本在总成本中的比重提高了2.5个百分点。问原材料的价格上涨了多少?
犯罪动机是指刺激犯罪人实施犯罪行为以达到________的内心冲动或者起因。
最新回复
(
0
)