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
75
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.
Why did some experts think that we should develop space shuttle?
选项
A、Because the U.S. and Russia had worked out space shuttles, China has to catch up with them.
B、Because it is the mark of great power.
C、Because it is easier to develop space shuttle than spaceship.
D、Because we can learn from the technologies and experience of the U.S. and Russi
答案
D
解析
第二段提到了some expels的意见,认为“China could learn from their technologies and experience, skip over spaceship and leap directly to space shuttle.”,其他选项说法都有问题,故选D。
转载请注明原文地址:https://kaotiyun.com/show/f4TO777K
0
研究生英语学位课统考(GET)
相关试题推荐
Accordingto______acrosstherelevantresearchcommunity,thepublishedattackrepresentsanextremepositioninitsdemandsfor
Horsebackriding______boththeskillofhandlingahorseandthemasteryofdiverseridingstyles.(2004年中国科学院考博试题)
______theassignmentsareturnedinbeforetheendofthisweek.
Todaybusinesscardsaredistributedbyworkingpeopleofallsocialclasses,illustratingnotonlytheuniquityofcommerciali
Althougharecessionisusuallycharacterizedbyatleasttwoconsecutivequartersof______GDP,thisisnotafixedrule.
Shelistenedcarefully______shemightdiscoverexactlywhathewanted.
Duringthepastgeneration,theAmericanmiddle-classfamilythatoncecouldcountonhardworkandfairplaytokeepitselffin
TheAmericaneconomicsystemisorganizedaroundabasicallyprivate-enterprise,market-orientedeconomyinwhichconsumerslarg
Ofallthecomponentsofagoodnight’ssleep,dreamsseemtobeleastwithinourcontrol.Indreams,awindowopensintoaworl
Doctorsareadvisedto______therecently-releasedandwell-receivedguidelinesforbloodpressure.
随机试题
下列关于肺泡表面活性物质的叙述,错误的是
患者女性,46岁,白带增多1年,偶而呈粉红色,近3个月有性交出血,月经尚规则,妇科检查见宫颈中度糜烂,子宫Ⅱ:常大小,质软、双侧附件无异常所见。阴道镜下活检有癌细胞已突破基底膜5mm,有淋巴管被侵袭及病状融合现象。该患者的临床分期应是
A.药物治疗B.乳房切开引流术C.乳腺肿块切除术D.单纯乳腺切除术E.乳腺癌根治术乳腺囊性增生病可行()
到2020年,新增劳动力平均受教育年限从()年提高到13.5年。
从2020年到2035年再到2050年,中华民族要实现伟大的梦想。其发展进程是:
下列关于通用对话框CommonDialog1的叙述中,错误的是
中国注册税务师协会宣传处王干事正在准备一份介绍本协会的演示文稿,按照下列要求帮助王干事组织材料完成演示文稿的整合制作,完成后的演示文稿共包含15张幻灯片,且没有空白幻灯片。在考生文件夹下,打开空白演示文稿“PPT.pptx”,根据Word文档“PPT素
Moreboysthangirlsarebornallovertheworld,butanewstudyhasfoundthatthecloserpeoplelivetotheequator(赤道),the
______wewereoutofthetrafficjamwewereabletoresume(恢复)ournormalspeed.
I______youthatMary’sbackyesterdaybutIforgotallaboutit.
最新回复
(
0
)