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
The most well-known portrait of a woman in the world is over the moon literally. Recently NASA managed to【B1】______an image of t
The most well-known portrait of a woman in the world is over the moon literally. Recently NASA managed to【B1】______an image of t
admin
2016-03-29
58
问题
The most well-known portrait of a woman in the world is over the moon literally. Recently NASA managed to【B1】______an image of the Mona Lisa directly to a satellite orbiting the lunar body.
How far did she have to travel? Nearly 240 000 miles, says NASA, shot by laser from the agency’s Goddard Space Flight Center in Greenbelt, Maryland to an【B2】______on NASA’s Lunar Reconnaissance Orbiter(LRO)spacecraft called the Lunar Orbiter Laser Altimeter, or LOLA.
NASA【B3】______uses lasers to track the LRO’s altitude as it orbits the moon, and back in 2006 we were sending laser pulses between NASA spacecraft and Earth based【B4】______ separated by millions of miles. The wrinkle here: This was apparently the first time we’d managed one-way laser communication at【B5】______distances, says LOLA principal investigator David Smith with MIT.
To send the famous image of the Mona Lisa into space required flawless digital timing. First, a black and white version of the famous Italian painting was broken into a 152 x 200 pixel grid, with each pixel represented by a number between zero and 4 095 that【B6】______a shade of gray. Those values were then【B7】_____, one at a time, in 4 096 discrete bursts at a rate of about 300 bits per second.
On the receiving end, LOLA was able to reassemble the precise values based on the arrival times of each pulse, and NASA says it managed to do so without【B8】_____the LRO’s primary job of mapping the moon’s elevation and terrain. Where the earth’s【B9】_____interfered, causing pixel errors, NASA employed the same error-correction code algorithm used with CDs and DVDs to【B10】_____.
【B1】
选项
答案
beam
解析
根据空格前的to可知,空格处应填入动词(词组)。结合录音可填入beam,意为“发射”。
转载请注明原文地址:https://kaotiyun.com/show/eLL7777K
0
大学英语六级
相关试题推荐
NeedWe"NeverGiveUp"?1.人们认为“永不言败”才是成功关键2.但有时候放弃也是一种明智选择3.我们大学生应该怎么做
A、30.B、42.C、62D、80B短文首句就提到David将在玻璃盒中待上6周,后文详细介绍时又一次提及sixweeks,故B为答案。
A、Doubtful.B、Supportive.C、Opposing.D、Neutral.C短文提到,政府机构坚决反对标签提供更多的信息,C的Opposing(反对)与短文的disagreedstrongly一致,故正确。
A、Darkerskinnedpeople.B、Lighterskinnedpeople.C、Theoldagedpeople.D、Peoplelivinginthenorth.B短文提到,深色皮肤的人比浅色皮肤的人产生的维生
A、Heisunabletopreventstudentsfromfighting.B、Heispopularforhisdevotiontoteaching.C、Hislecturesarehardtounder
Innovation,theeffectiverecipeofprogress,hasalwayscostpeopletheirjobs.Overthepast30yearsthedigitalrevolutionh
NBAcentreJasonCollinsrecentlyannouncedhewasgayinacoverstoryforSportsIllustrated.Inotherwords,he"cameoutof
TheConservativegovernmentwillfacedifficultyprovingthatitsplantoautomaticallyenrolleligibleCanadiansintheOldAge
ShoppricesinJunefellatthefastest【C1】______ratesinceatleast2006as【C2】______foughttoattractcustomers,theBritishR
茶马古道(Tea-horseAncientRoad)两边,生活着20多个少数民族。不同的地方有着各自美丽而神奇的自然风景和传统文化,比如:大理古城、丽江古城、香格里拉(Shangrila)、雅鲁藏布大峡谷和布达拉宫(PotalaPalace)。古道的
随机试题
Ⅳ型超敏反应又称为
酮体是指
治疗热闭神昏,常用的药物是()。
某市服装厂6月发生下列业务:(1)执行上月合同,来料加工服装,进门面料到岸,货值折人民币200000元,海关采用保税政策,暂免税放行;(2)为来料加工合同在境内采购垫肩和纽扣,取得税控增值税发票,价款1000元,增值税170元;(3)签订进料加
最早提出体育教学法的是()。
乐羊为魏将而攻中山。其子在中山,中山之君烹其子而遗之羹。乐羊坐于幕下而啜之,尽一杯。文侯①谓堵师赞②曰:“乐羊以我故,而食其子肉。”答曰:“其子而食之,且谁不食?”乐羊罢中山,文侯赏其功而疑其心。孟孙猎得魔④使秦西巴持之归其母随之而啼秦西巴弗忍而
一个民族的希望,全然在于它的创造力,中国梦的构想,最终也要落在创造力这个统摄全局的根基上。中华民族从来就是一个具有巨大创造力的民族,包括四大发明在内的诸多原创杰作,甚至影响了整个人类的文明进程。时至今日,我们有理由拿出更多的原创佳构来,向历史致敬,为未来播
取脂定价策略是指生产商利用消费者的求新、求奇心理,抓住竞争对手尚未出现或竞争还不激烈的有利时机,将产品价格定得很高,以便在短期内获取尽可能多的利润、尽快收回投资的一种定价策略。根据上述定义,下列行为属于取脂定价策略的是()。
网络传播的媒介特征。(中国传媒大学,2011)
A、Theyshouldbeavoidedbyallmeans.B、Theyarebadforeffectivemanagement.C、Theycanbegoodforanorganization.D、Theya
最新回复
(
0
)