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
63
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
A、Thinairproblem.B、Highlongitudeproblem.C、Highaltitudeproblem.D、Coldproblem.C推断题。根据原文Nohumidity,moderatetemperature
A、Arealbook.B、Acomputerfile.C、Ahandhelddevice.D、Apieceofpaper.B短文开头即对电子书下定义,指出它是以电脑文档的形式出现的,故B为答案。
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、Enthusiastic.B、Doubtful.C、Peaceful.D、Cautious.B男士说:“当女性与男性谈话时,她们常常觉得男士们好像没有真正在听,或者男士们没有认真地在交谈”。可见,女性在与男性交谈时会怀疑男性是否真的与她在交流,
Itisimpossibletodescribeinsomnia(失眠)topeoplewhoaresoundsleepers.Thesearethepeoplewhotrustthatgettinginbedwi
We’vegotitallwrong,saysCarlosSlim,theMexicantelecomstycoonandworld’ssecond-richestman:weshouldbeworkingonly
TakingVacationsExperiencesan82PercentIncreaseinJobPerformanceA)Thistimeofyear,manyEuropeansarelookingforwardt
TheWesternisauniquelygenrewhichhasfoundexpressioninthemediousofliterature,radio,televisionandthemovies.Weste
A、Refinetheirinterviewingtechniques.B、Arrangetheirworkingschedules.C、Selectappropriatepracticalcourses.D、Writecover
Thekeyelementtosuccessfulinterviewingisnotyourexperience,yourgrades,whatclassesyoutook,yourextracurricular(课外的)
随机试题
关于HCV的描述正确的是
A、东北B、甘肃C、福建D、浙江E、云南、广西防风主产于
采购工作的主要任务不包括()。
依据委托监理合同示范文本,监理合同的有效期是从监理合同双方签字之日起,到( )止。
持有不同货币的交易双方兑换各自持有的一定金额的货币,并约定在未来某日进行一笔反向交易的交易,称为( )。
甲、乙、丙、丁四人共同出资设立普通合伙企业,委托合伙人丁单独执行企业事务。下列表述中,不符合《合伙企业法》规定的是()。
2000年,一具特殊的恐龙化石的发现,揭示了一个也许能识别雌雄恐龙的新方法。当一些种类的鸟类处于产卵期时,后肢的股骨骨髓腔里,会产生一种薄薄的组织层,称为“髓质骨”。该组织富含钙质。能为蛋壳的生成贮存原料。专家们在检查这具恐龙化石的股骨时,发现了髓质骨。因
阅读下列材料,回答问题。开展××市农村优秀教师评定工作的决定各区(县、市)教育局:根据××
(1999)设两个相互独立的随机变量X和Y分别服从正态分布N(0,1)和N(1,1),则()
【B1】【B6】
最新回复
(
0
)