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
Before China started developing manned spaceship in 1992, space experts of the nation’s "863" high-tech program had conducted 5-
Before China started developing manned spaceship in 1992, space experts of the nation’s "863" high-tech program had conducted 5-
admin
2013-01-10
43
问题
Before China started developing manned spaceship in 1992, space experts of the nation’s "863" high-tech program had conducted 5-year studies on the question—will China choose to develop spaceship instead of space shuttle?
Some experts held that since the U.S. and Russia had worked out space shuttles, China could learn from their technologies and experience, skip over spaceship and leap directly to space shuttle.
Other experts believed that manned space flight was a matter involving human life, so safety and reliability must be put at top priority; space shuttle, although more advanced than spaceship technologically, bore tremendous technological difficulties and risks. Meanwhile, the development of space shuttle required many sophisticated technologies, which was a gap too big for China to bridge at that time.
Viewed from the history of manned space flight, both the Soviet Union and the United States started from spaceship when beginning their space flight missions. Currently the most frequently launched and widely used spaceship is satellite-style manned spaceship. Another reason was the huge fund needed in developing space shuttle was too much for China. While China was already in possession of mature satellite recovery technology, based on which the recovery of spaceship can be solved, and many technologies for spaceship can be borrowed from that of satellites.
After full discussion, comparison and analysis, experts reached agreement that China must take a space flight road conforming to its national conditions, must learn from the experience and developing way of Soviet Union and the U.S., which is, starting from spaceship instead of space shuttle.
Moreover, considering that China had achieved much in developing carrier rocket and gained rich experience and solid technological ground for application satellites, especially recoverable ones, experts concluded that China could, through efforts, leap directly to the third-generation spaceship—manned spaceship with multiple cabins and astronauts.
What are the specialties of the third-generation spaceship?
选项
A、With multiple cabins and astronauts.
B、Without the cabins and astronauts.
C、With simplex cabin and astronaut.
D、With most advanced cabins and astronauts.
答案
A
解析
由最后一句话“the third-generation spaceship-manned spaceship with multiple cabins and astronauts.”可知答案为A项。
转载请注明原文地址:https://kaotiyun.com/show/N4TO777K
0
研究生英语学位课统考(GET)
相关试题推荐
It’saprogramdesignedto______mainlyto16to25yearolds.(2014年厦门大学考博试题)
Thetravelagencyhasafullprogramof______,iftourislswishtovisitlocalplacesofinterest.(2003年上海交通大学考博试题)
Inthisfactory,suggestionsoftenhavetowaitformonthsbeforetheyarefully______.
Therepublicationofthepoet’smostrecentworkswillcertainly______hisnationalreputation.
Religiousfreedomanddemocraticchoicewerestrongly______againatthisinternationalhumanrightsconference.(2006年厦门大学考博试题)
Forofficeinnovators,theunrealizeddreamofthe"paperless"officeisaclassicexampleofhigh-techhubris(傲慢).Today’soffi
随机试题
设某商品的需求量Q为价格P的单调减函数:Q=Q(p),其需求弹性η=>0,求:求P=6时总收益对价格弹性,并说明其经济意义;
在发展台湾海峡两岸关系上,我们坚持
某女,56岁,身高155cm,体重72kg,有高血压史9年,其父亲和哥哥患有2型糖尿病。单位体检时发现空腹血糖6.9mmol/L来诊为明确患者是否患有糖尿病,可建议做下列哪一项检查()
建设工程项目质量的影响因素中,对于建设工程项目管理者而言不可控的是()
下列有关执行理财规划的描述,正确的是( )。Ⅰ.规划的执行时间可能会花费几个月甚至几年的时间Ⅱ.执行理财规划的决定是客户本人的惟一责任Ⅲ.规划的执行是整个理财规划过程中的最后一个步骤
下列按商标结构划分的是( )。
决定某种商品需求价格弹性大小的因素主要有()。
农村集体经济组织实行()的双层经营体制。
一个房产开发商位于一座机场旁边,开发商想在土地上修建一些房子,但机场的噪声影响了这片土地的价值。飞行的飞机越多,开发商获取的利润就会越少。倘若用x表示每天飞行的飞机数,用y表示开发商建造的房屋数,那么机场的利润为π1=36x-x2,开发商的利润为π2=42
Astudyhasfoundthathavingsmallchildrencanmakeittoughertokeepupahealthydietandexercisehabits.Morethan1,500
最新回复
(
0
)