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
考研
Astronaut Jim Voss has enjoyed many memorable moments in his career, including three space flights and one space walk. But he re
Astronaut Jim Voss has enjoyed many memorable moments in his career, including three space flights and one space walk. But he re
admin
2013-04-11
63
问题
Astronaut Jim Voss has enjoyed many memorable moments in his career, including three space flights and one space walk. But he recalls with special fondness a decidedly earthbound(只在地球上的) experience in the summer of 1980 when he participated in the NASA-ASEE Summer Faculty Fellowship Program. Voss, then a science teacher at West Point was assigned to the Marshall Space Flight Center’s propulsion(推进) lab in Alabama to analyze why a hydraulic fuel pump seal on the space shuttle was working so well when previous seals had failed. It was a seemingly tiny problem among the vast complexities of running the space program` Yet it was important to NASA because any crack in the seal could have led to destructive results for the astronauts who relied on them.
"I worked a bit with NASA engineers, "says Voss, "but I did it mostly by analysis. I used a handheld calculator, not a computer, to do a thermodynamic(热力学的) analysis. "At the end of the summer, he, like the other NASA-ASEE fellows working at Marshall summarized his findings in a formal presentation and detailed paper. It was a valuable moment for Voss because the ASEE program gave him added understanding of NASA, deepened his desire to fly in space, and intensified his application for astronaut status.
It was not an easy process. Voss was actually passed over when he first applied for the astronaut program in 1987. Since then he has participated in three space mission. The 50-year-old Army officer, who lives in Houston, is now in training for a four-month mission as a crew member on the International Space Station starting in July 2000.
Voss says the ASEE program is wonderful for all involved. "It brings in people from the academic world and gives NASA a special property for a particular period of time. It brings some fresh eyes and fresh ideas to NASA, and establishes a link with colleges and universities", Voss explains". There is an exchange of information and an exchange of perspectives that is very important".
For the academic side, Voss says, the ASEE program also "brings institutions of higher learning more insight into new technology. We give them an opportunity to work on real-world problems and take it back to the classroom".
选项
A、Because previous seals all failed.
B、Because it was very complex in running the space program.
C、Because great care has to be taken of the hydraulic fuel pump sealing.
D、Because any crack in the seals would cause disastrous results for astronauts.
答案
D
解析
第一段最后一句"Yet it was important to NASA because any crack in the seal could have led to destructive results for the astronauts who relied on them"说明了答案,意为"密封圈的裂缝给依靠它的宇航员带来毁灭性的后果"。
转载请注明原文地址:https://kaotiyun.com/show/AHii777K
本试题收录于:
GCT工程硕士(英语)题库专业硕士分类
0
GCT工程硕士(英语)
专业硕士
相关试题推荐
Accordingtothespeaker,theproblemwith"insidervolumes"isthatthey______.Whenthespeakersaysthathesimultaneously
Whatmadeanimpressionontheauthor?Mostofthethingsinthestorewindowwere______.
Whatmadeanimpressionontheauthor?Thestorytakesplaceinthe______.
Thefirewasfinallybroughtundercontrol,butnot______extensivedamagehadbeencaused.
OnereasonwhythelossoflivesintheLosAngelesearthquakewascomparativelylowisthat______.Thefunctionofthecomput
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport:thedamageanddeath
Howdidthemotherdolphintalkwithherbabyoverthetelephone?Whenscientistsdescribedolphins’communicativeskills,thei
______,IwrotealettertoHenryFordⅡandtoldhimwhathappened.
Whentelevisionfirstbegantoexpand,veryfewofthepeoplewhohadbecomefamousasradiocommentatorswereabletobeeffect
______,IwrotealettertoHenryFordIIandtoldhimwhathappened.
随机试题
Whentherearesmallchildrenaround,itisnecessarytoputbottlesofpillsoutof______
A、Mrs.Smithisgoodattheorybutdrivespoorly.B、Mrs.Smithalwaysgetlostontheroad.C、Mrs.Smithknowslittleaboutrule
患者,男性,57岁,患痹证5年余,经久不愈,关节屈伸不利,肌肉瘦削,腰膝酸软,骨蒸潮热,心烦口干,舌质淡红,苔薄白少津,脉细数。
某舌癌患者因术后放疗造成患侧下颌骨放射性骨坏死,并继发感染,局部反复肿胀,伴剧烈疼痛。以下治疗措施中,哪项是不适当的
对于合同解除,下列表述错误的是()。
建筑材料耐腐蚀能力是以下列何种数值的大小作为评定标准的?[2004—005]
甲开枪射杀洪某,子弹斜穿过洪某的左眼后射中路人黄某头部,致洪某左眼失明,黄某死亡。对甲的行为()。
人类社会发展历程反复昭示,和平与发展互为因果。没有社会的和平稳定,发展就失去保障;没有经济的发展繁荣,和平的基础也会受到侵蚀。当前,由于国际金融危机的冲击,发展问题十分突出,一些发展中国家的社会稳定乃至地区和平受到严重影响,实现千年发展目标的任务紧迫而艰巨
ARM处理器复位后自动进入【47】状态,如果要进入Thumb状态,则使用的指令助记符为【48】可以切换到Thumb状态。
Therearetwotypesofpeopleintheworld.Althoughtheyhaveequaldegreesofhealthandwealthandtheothercomfortsoflife
最新回复
(
0
)