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
In 1961, NASA has encouraged studies of space-planes that could be built using existing technology. The main difficulties of sp
In 1961, NASA has encouraged studies of space-planes that could be built using existing technology. The main difficulties of sp
admin
2009-04-23
24
问题
In 1961, NASA has encouraged studies of space-planes that could be built using existing technology.
The main difficulties of space flight are neither______ nor______.
选项
答案
technical,commercial
解析
第2段的第l句可以找到答案,要实现这一梦想并不是技术和商业上的问题。
转载请注明原文地址:https://kaotiyun.com/show/AVZK777K
0
大学英语六级
相关试题推荐
InShakeShackCompany,astherestaurantmanager,youwillberesponsibleforhelpingtoleadanddrivethedailyoperationsof
InShakeShackCompany,astherestaurantmanager,youwillberesponsibleforhelpingtoleadanddrivethedailyoperationsof
InShakeShackCompany,astherestaurantmanager,youwillberesponsibleforhelpingtoleadanddrivethedailyoperationsof
Researcherssaypeopletravelingintrafficarethreetimesmorelikelytosufferaheartattack.Theysaytheriskofahearta
Goodafternoon,ladiesandgentlemen.Awarmwelcometoyouall.MynameisBelinda.【T1】______ourtravelagent,Iwillbeyourl
Ifyouwanttobelikedininterviews,youneedtobeconfident.Butatthesametime,youshouldalsobehonest.Thereisasim
Alargenumberofcompanieswentbankruptlastyear,mainlyduetotheterribleeconomicconditionsandtheirpoormarketingstra
It’sestimatedthatone-thirdofthecountriesoftheworldareveryrich,andtwothirdsareverypoor.Peopleinthericherco
Nodirectrelationshiphasbeenprovenbetweenhighcholesterollevelsandheartattacks.Consumersareencouragedtobuylow-f
随机试题
把下段文章中画线的句子译成现代汉语。管仲夷吾者,穎上人也。少時常與鮑叔牙游,鮑叔知其賢。管仲貧困,常欺鮑叔,鮑叔終善遇之,不以為言。已而鮑叔事齊公子小白,管仲事公子糾。及小白立,為桓公,公子糾死,管仲囚焉。鮑叔遂進管仲。管仲既用,任政於齊,齊桓公
Today,mostcountriesintheworldhavecanals.Manycountrieshavebuiltcanalsnearthecoast,andparallel【C1】______thecoast
HTTP协议采用()方式传送Web数据。
在病例对照研究中,控制混杂偏倚,不应采取下列哪条措施
根据1954年宪法和现行宪法有关立法的规定,下列哪项是正确的?()
一个由R=3Ω、L=4H和C=1μF三个元件相串联的电路,若电路振荡,则振荡角频率为下列选项中的()。
[2006年第33题]在双缝装置实验中,对于给定的入射单色光,当双缝间距增大时,则屏幕上干涉条纹的变化情况是()。
( )负责对基金管理公司的会计核算结果进行复核。
不积跬步,无以至千里,不积小流,无以成江河,这段话说明的是()。
Asociety’sinfantmortalityrateisanacceptedindicatorofthatsociety’sgeneralhealthstatus.Eventhoughinsomelocaliti
最新回复
(
0
)