首页
登录
职称英语
A project likely to evolve in. the near or intermediate future is space tour
A project likely to evolve in. the near or intermediate future is space tour
游客
2024-06-06
50
管理
问题
A project likely to evolve in. the near or intermediate future is space tourism, a purely【B1】______ activity that would not have to rely on unpredictable government decisions. It would 【B2】______ put space operations on a much more solid, dependable footing and would enormously【B3】______ man’s space activity. While some people see space tourism as a【B4】______ multibillion-dollar business, difficult technical problems remain to be【B5】______
First, a manned reusable rocket like the Venture Star must be built. Then, a second serious problem must be【B6】______ : even today’s most-advanced space rockets are able to【B7】______ only about 2.5% of their launch weight into orbit-- a ratio that has hardly changed in the last 40 years. This fact is a result of the【B8】______ of material characteristics and chemical power sources, and【B9】______ .
Today the price of a ticket to space would have to be at least $ 50 000. It is questionable【B10】______ . However, space tourism may become more attractive once space facilities are built【B11】______ . [br] 【B3】
选项
答案
expand
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3622750.html
相关试题推荐
Fromthepassage,whichisthemaininfluencefactorinthefuture?[br]Theinf
Fromthepassage,whichisthemaininfluencefactorinthefuture?[br]Accordi
TheStockExchange______(对可能出现的政局变化很敏感).issensitivetolikelypoliticalchang
【S1】[br]【S20】A、involveB、evolveC、solveD、dissolveA形近词辨义。根据语义可以判断,将来的研究领域可能会涉
[originaltext]Ateamofscientistsrecentlybeganaprojecttomeasurethe
[originaltext]Ateamofscientistsrecentlybeganaprojecttomeasurethe
[originaltext]Ateamofscientistsrecentlybeganaprojecttomeasurethe
Largeanimalsthatinhabitthedeserthaveevolvedanumberofadaptationsf
Largeanimalsthatinhabitthedeserthaveevolvedanumberofadaptationsf
Largeanimalsthatinhabitthedeserthaveevolvedanumberofadaptationsf
随机试题
•Readthefollowingarticleaboutmarketingandethicsandthequestionsonthe
PASSAGETHREE[br]WhatwilltheEPFLcontributetotheBlueBrainProject?Tocr
25岁女性,停经10周,前来就诊,诊断为"不可避免流产",下列病史及体检哪项与诊
A.身痛逐瘀汤 B.血府逐瘀汤 C.膈下逐瘀汤 D.少腹逐瘀汤 E.桃红
综合实践活动的基本理念主要体现在( )方面。A.突出学生主体 B.面向学生生
不属于淡白舌临床意义的是A.大失血后 B.久病 C.禀赋不足 D.水湿内停
公共租赁住房的租赁期届满需要续租的,承租人应当在租赁期满()个月前向市、县级人民
下列关于间接融资说法不正确的是()。A.间接融资比较灵活,分散的小额资金通过银
口腔健康促进的领域中没有( )。A.制定健康的公共政策 B.创建支持性环境
根据《畜禽规模养殖污染防治条例》,向环境排放经过处理的畜禽养殖废弃物,应当符合国
最新回复
(
0
)