首页
登录
职称英语
In 1961, NASA has encouraged studies of space-planes that could be built using e
In 1961, NASA has encouraged studies of space-planes that could be built using e
游客
2024-06-17
20
管理
问题
In 1961, NASA has encouraged studies of space-planes that could be built using existing technology. [br] The X-34 has a reusable lower stage and an expendable upper, the goal of designs is______.
选项
答案
to reduce the cost
解析
文章第6段第1句,X-34运载火箭有上下两级火箭组成,这样设计的目的是减少发射小型卫星的成本。
转载请注明原文地址:https://tihaiku.com/zcyy/3637960.html
相关试题推荐
In1961,NASAhasencouragedstudiesofspace-planesthatcouldbebuiltusinge
In1961,NASAhasencouragedstudiesofspace-planesthatcouldbebuiltusinge
In1961,NASAhasencouragedstudiesofspace-planesthatcouldbebuiltusinge
In1961,NASAhasencouragedstudiesofspace-planesthatcouldbebuiltusinge
In1961,NASAhasencouragedstudiesofspace-planesthatcouldbebuiltusinge
In1961,NASAhasencouragedstudiesofspace-planesthatcouldbebuiltusinge
[originaltext]GoodmorningandwelcometoAmericanstudies101.Iwouldlik
[originaltext]Studiesshowthattelevisionplaysabigpartinthelivesof
Currentstudiesshowthatwhatgoesonlabelsisanimportantconsideration
Currentstudiesshowthatwhatgoesonlabelsisanimportantconsideration
随机试题
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcen
[originaltext]W:So,haveyoufoundajobyet?M:No,but,Ihaveafewleads,
TVLinkedtoLowerMarks[A]Theeffectoftelevisionon
施工进度协调包括()A.承包人之间的进度协调 B.承包人与发包人之间的协
正常情况下胃粘膜不会被胃液所消化,是由于:A.胃液中不含有可消化胃粘膜的酶 B
A.血海 B.阴陵泉 C.三阴交 D.悬钟 E.地机位于小腿内侧,内踝尖
自2008年11月1日起,对个人首次购买90m2及以下普通住房的,契税税率暂统一
李某为公司仓库保管员。某日,两歹徒为逼李某交出仓库钥匙而持刀追打李某,李某被打成
关于企业采购管理,下列说法正确的有()A、企业采购管理的总目标是以最低的总
男性的泌尿系损伤中,最常见的部位是A.膀胱损伤 B.尿道损伤 C.阴茎损伤
最新回复
(
0
)