首页
登录
职称英语
What can we learn about the impactor? [originaltext] Jubilation at NASA’s Je
What can we learn about the impactor? [originaltext] Jubilation at NASA’s Je
游客
2023-11-14
50
管理
问题
What can we learn about the impactor?
Jubilation at NASA’s Jet Propulsion Labs in California, as the first picture of the collision comes in from the Deep Impact mother ship. Just before six o’clock GMT, the impactor, weighing a third of a ton, smashed into Comet Tempel I at a speed of thirty seven thousand kilometers an hour.
Telescopes across the world, and in Earth orbit, will be watching the giant spray of debris thrown out by the impact. The brightened comet in the constellation Virgo may even be visible to the naked eye, allowing members of the public around the world to join in this historic moment in astronomy.
选项
A、It is a little more than 180 kg.
B、It is about 3 tons.
C、It travels at a speed of 37 thousand kilometers all hour.
D、It travels at a speed of 17 thousand kilometers an hour.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3187114.html
相关试题推荐
WheretheTropicalstormmakeslandfall?[br][originaltext]TropicalstormA
Whousedtolivetogetherinanextendedfamily?[br][originaltext]Thefa
Whousedtolivetogetherinanextendedfamily?[br][originaltext]Thefa
Whousedtolivetogetherinanextendedfamily?[br][originaltext]Thefa
Themultinationalcommoditytradingcompanyadmittedthat[originaltext]Amu
Whatcanbelearnedfromthepassage?[br][originaltext][17D]Marriagein
Whatcanbelearnedfromthepassage?[br][originaltext][17D]Marriagein
ThepurposeofMagellan’sexpeditionwas[br][originaltext]Earlyinthe16
In1847mostcountriesoftheworldwere[br][originaltext]Anymistakemad
In1847mostcountriesoftheworldwere[br][originaltext]Anymistakemad
随机试题
Traditionally,universitieshavecarriedouttwomainactivities:researcha
Dependingonwhichplayeryouask,the"Fevernova"ballthatsportsequipmen
Forthispart,youareallowedthirtyminutestowriteaneye-witnessaccountof
下列哪项临床表现与体内雌激素的增加无关()A.肝掌 B.蜘蛛痣 C.面部
不属于子痫前期的临床症状为A、腹痛 B、头痛 C、头晕 D、呕吐
骨盆人口平面与地平面所成的角度一般为A.45° B.50° C.55° D
房屋产权中,()是房屋所有权的核心。A:使用权 B:收益权 C:处分权
关于肺癌的叙述,下列哪项是正确的A.以小细胞癌为最常见 B.鳞癌与吸烟无关
全面依法治国要求加强人权的司法保障,下列哪些做法体现了这一要求?()A.最高法
建设单位应当将拆除工程发包给具有相应资质等级的施工单位,下列资料中应当报送建设工
最新回复
(
0
)