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
A、Mars B、Venus C、Mercury D、Jupiter C
A、Mars B、Venus C、Mercury D、Jupiter C
admin
2010-03-25
26
问题
Bad weather forced mission managers to postpone launching NASA’s Messenger spacecraft on a Boeing Delta 2 rocket early on Monday.
Managers stopped the launch because of clouds near the pad at a critical point in the countdown. The minuscule 1 E-second launch window left no time to try again.
NASA hopes to try again early on Tuesday.
Messenger is set to begin a 4. 9 billion mile journey to orbit the planet Mercury and collect data on the planet’s geology and atmospheric composition. It will be the first spacecraft to visit the planet since Mariner 10 whizzed by three times in 1974 and 1975. It will also be the first spacecraft ever to orbit the planet.
Launch controllers have until Aug. 14 to launch the spacecraft. After that, planetary alignment issues will postpone the launch for about a year. Upcoming launch opportunities will also have extraordinarily short launch windows.
选项
A、Mars
B、Venus
C、Mercury
D、Jupiter
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/coqO777K
0
专业英语八级
相关试题推荐
A、Howtogetalongwithpeople.B、Howtomakeabudgetforpersonalneeds.C、Howtomakemoneyforherentertainment.D、Howtot
Itisallverywelltoblametrafficjams,thecostofpetrolandthequickpaceofmodemlife,butmannersontheroadsarebec
A、Ithasseenasteadydeclineinitsprofits.B、Ithasbecomemuchmorecompetitive.C、Ithaslostmanycustomerstoforeignco
Theteachingsequenceisintendedtohelplearners(1)inwritingshortanswers.Itconsistsofthreestages:(2),thepractice
Actually,though,America,the"landofimmigrants",hasalwayshadpeopleofmanydifferentnationalitiesandlanguages.The19
Insomecountrieswhereracialprejudiceisacute,violencehassocometobetakenforgrantedasameansofsolvingdifference
Ateamofworld-leadingneuro-scientistshasdevelopedapowerfultechniquethatallowsthemtolookdeepinsideaperson’sbrai
篮球已成为美国最为普及的体育运动之一,室内室外都可以打篮球。篮球在1936年入围奥林匹克比赛,而它是1891年发明的。
A、Forlanguagelearners,theInternetenvironmentlacksreal-lifesocialfactors.B、LearningalanguagethroughtheInternetmay
Throughoutthenation’smorethan15,000schooldistricts,widelydifferingapproachestoteachingscienceandmathhaveemerged
随机试题
认为“罗马的政体是最能体现制衡原理”的思想家是
一男性患者,20岁,3年来发生多次骨折,并伴有关节疼痛,肝、肾功能正常,超声检查见左侧叶甲状腺下极背侧有一1.0cm×1.5cm的低回声结节,包膜完整,血供丰富,其最可能是
关于现浇混凝土结构的模块和支架施工的说法,正确的是:
根据有关规定,票据和结算凭证金额以中文大写和阿拉伯数码同时记载,二者必须一致,二者不一致的票据()。
将下列选项中的词语依次填入各句横线处,最恰当的一组是:①两国的________________期满,将于今年的八月再次签订。②有问题可以________________解决嘛,千万别伤了和气。③美伊双方达成________________,停战后美国
简述宋杂剧的结构特点及元杂剧的代表人物和作品。
今天是植树节,一群小学生去植树,如果每人植5棵树,还剩3棵树没人植;如果其中两人各植4棵树,其余的人各植6棵树,就恰好植完所有的树。问:一共有树多少棵?()
轮胎:汽车
知觉定势
A、Takeawalkinthedesert.B、GotoacinemaC、WatchTVprogrammes.D、Attendaparty.A选项是四种活动,可猜测问的是老师或学生的活动。原文说该学院的学生不想看书、谈话、
最新回复
(
0
)