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
21
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、only with the telescopes
B、even with naked eye
C、only in a limited area
D、only by a special telescope
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/DkhK777K
0
专业英语四级
相关试题推荐
Thesectarianclashesoccurredbetween______.
Accordingtothenews,whichofthefollowingsocialnetworkingsitesisNOTusedintheAmericanElection?
Thistalkmostlikelyhappens
Languageswillcontinuetodiverge.EvenifEnglishweretobecometheuniversallanguage,itwouldstilltakemanydifferentfo
About84%ofpeoplehavementalhealthproblemsandathirdoftheUKgeneralpublicfeelsisolated,accordingtoanewreport.
Researchershavefoundexperimentalevidencethatatouchcanbeworthathousandwords.MatthewJ.Hertenstein,aprofessorof
Thegoodnewsisthattoday’steenagersareeagerreadersandprolificwriters.Thebadnewsis【C1】______theyarereadingandwr
Thegoodnewsisthattoday’steenagersareeagerreadersandprolificwriters.Thebadnewsis【C1】______theyarereadingandwr
Listeningtoothersisanimportantpartofcommunication.Manymoreerrorsanddifficulties【C1】______misunderstandingwhatyou
Tocompensateforthedeclineintheavailabilityoffossilfuelsinfutureyears,wewillhavetoprovideatleast_____alternat
随机试题
Explaintheprincipleofproximityofconcordwithexamples.
化疗时预防白血病细胞大量破坏造成的尿酸性肾病,以下治疗正确的是
识别抗原抗体复合物的补体是
一群雏鸡发病,表现为贫血,运动障碍,姿势异常,腹下浮肿呈紫色,有的雏鸡突然死亡,对饲料分析发现其中维生素E含量过低。病理剖检,该病鸡脑部病变主要发生的部位是
可行的陆生植被现状调查方法有()。
法律手段是通过经济立法和经济司法等来规范经济行为,维护经济秩序,以调控经济活动的手段。()
A.充填物过高,有早接触B.充填物悬突C.充填材料化学刺激D.牙髓状态判断错误E.对颌牙有不同金属修复体龋齿充填治疗后咬合痛,与温度刺激无关,可能的原因是()。
甲骑自行车逆行,在一个十字路口加速闯红灯,将正常过路口的老人乙撞倒。老人摔伤加上惊吓过度,送往医院抢救无效后死亡。甲的行为()
下列情形中成立不作为犯罪的是()。(2019一专一13、2019一法专一3)
A.mentallyB.standC.assistD.complexE.shelterF.strollingG.coordinationH.surviv
最新回复
(
0
)