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
外语
What can we learn about the impactor?
What can we learn about the impactor?
admin
2013-01-10
70
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://kaotiyun.com/show/xkhK777K
0
专业英语四级
相关试题推荐
Thecommittee______alreadyheld______firstmeetingoftheyear.
TherelationshipbetweenEuropeandIndiaisbasedon______.
Whatisthewoman’spurposetohavesuchaconversation?
Whereisthisconversationprobablytakingplace?
Whatdothetwopeoplemainlytalkabout?
Languageswillcontinuetodiverge.EvenifEnglishweretobecometheuniversallanguage,itwouldstilltakemanydifferentfo
Chomsky’sbookontherelationbetweenlanguageandthoughtis______PsychologyandIdeology.
About84%ofpeoplehavementalhealthproblemsandathirdoftheUKgeneralpublicfeelsisolated,accordingtoanewreport.
Thegoodnewsisthattoday’steenagersareeagerreadersandprolificwriters.Thebadnewsis【C1】______theyarereadingandwr
Themanwantstohave______intheapartment.
随机试题
简述中国茶道与日本茶道的关系。
国民收入的分配是一个系统的经济运动过程,经过多次分解、集合和调整,最终表现为________两种用途。
宗气聚集于
功能性蛋白尿24小时尿蛋白定量为
破伤风病人,气管切开的指征主要是
房地产的评估价格对于房地产交易双方来说是()。
假如你是一名儿童保护领域的社会工作者,接到群众举报指出一名中度智障的儿童受到其父亲虐待。经初步了解,该儿童父母离异,其父亲表示无力教养身心障碍儿童。只好用打骂的方式。其父希望将孩子交给母亲抚养,但孩子的母亲已改嫁,不愿意接受这个孩子。在这个案例中,有哪些伦
Psychologistswarnthatplasticsurgerycanleadtoanidentitycrisis,amongotherpsychologicalissues.Ifyouwereafanoft
ThefamilyisthecenterofmosttraditionalAsians’lives.Manypeopleworryabouttheirfamilieswelfare,reputation,andhono
Whenwilltheexambeheld?
最新回复
(
0
)