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
NASA is releasing several images taken by the Hubble Space Telescope, which is the closest yet look at the red planet. Altogethe
NASA is releasing several images taken by the Hubble Space Telescope, which is the closest yet look at the red planet. Altogethe
admin
2009-05-24
47
问题
NASA is releasing several images taken by the Hubble Space Telescope, which is the closest yet look at the red planet. Altogether there are four images, which show the entire planet. Each view shows the planet as it completes one quarter of its daily rotation. In these views the north polar cap is turned toward the Earth and is clearly visible at the top of each picture. The images, were taken in the middle of the Martian northern summer, when the polar cap was at its smallest size. During this season the sun shines continuously on the polar cap. Previous spacecraft observations have shown that this summertime polar cap is composed of water ice, just like Earth’s polar caps.
The Hubble Telescope pictures reveal that great changes have occurred on the surface of Mars in the past 20 years. The Martian surface is ever changing. Some regions that were dark 20 years ago are now bright red; some areas that were bright red are now dark. Winds move sand and dust from region to region, often in huge dust storms. Over long timescales many of the larger bright and dark markings remain stable, but smaller details come and go as they are covered and then uncovered by sand and dust.
选项
A、Vague.
B、Clear.
C、Cannot be seen.
D、Barely visible.
答案
B
解析
见第一段第四句In these views the north polar cap is turned toward the Earth and is clearly visible at the top of each picture.可以用题干中的north polar cap作为信号词在文章中进行扫描来找到这个依据句。
转载请注明原文地址:https://jikaoti.com/ti/NfpjFFFM
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
下列哪些犯罪属于危险犯?()
下列哪些内容属于制定法?()
下列各种概念中可以适用于股份有限公司的有()。
A:Ibelievewe’vemetsomewherebefore.B:No,______.
Whatistheauthor’sattitudetowardhigh-techcommunicationsequipment?Theadvantageofemployeeshavingforeignlanguageski
IfonlyI______thebooksonthereadinglistbeforeIattendedthelecture.
Whichsporthasthemostexpensestrainingequipment,players’personalequipmentanduniforms?
Bankingandfinancialsystemsfilledwith______andcorruptionhindertheregion’sSuccess.
Childrenwouldplaywithfireuntiltheirhandswereburntawayif______.Impliedbutnotstated:______.
随机试题
下列属于质量特性中时间方面的特性的是()
经济全球化对发展中国家经济可能产生的消极影响有()
制造冰毒的原料药是
女,22岁。左下后智齿阻生,拟拔除发生上述并发症的原因是患者
张某将10吨钢材交仓储公司保管、储存,那么()。
Whichofthefollowingriskisnotthepoliticalriskininternationaltrade?()
下列不属于期货交易所职责的是( )。
下面属于财务经理的责任范围的是()。
Aproductistoberegardedasbeing______whenintroducedintoanothercountryatlessthanitsnormalvalue.
A、TheirfavoritemoviesB、Jokesforentertainment.C、Pastimeforthenight.D、Theireatinghabits.CWhatarethetwospeakersta
最新回复
(
0
)