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
A. attempt B. charged C. crucial D. delicate E. essentially F. eventually G. expended H. fraction I. individual J. maintain
A. attempt B. charged C. crucial D. delicate E. essentially F. eventually G. expended H. fraction I. individual J. maintain
admin
2020-11-21
88
问题
A. attempt B. charged C. crucial D. delicate E. essentially
F. eventually G. expended H. fraction I. individual J. maintain
K. minority L. negligible M. scrapping N. slashing O. upsurging
Space X launched a cheaper, partially-used rocket into orbit. That’s a stride toward 【C1】______the price tag of sending payload to space. Successfully flying reusable rockets is a 【C2】______step toward the dream of sending people to Mars. Until now, rockets have almost all been single-use. Once the fuel is【C3】______, a rocket stage plummets to Earth, resulting in the destruction of extremely expensive equipment that costs tens of millions of dollars to build.
Its founder has likened that to 【C4】______a 747 jet after one flight, which would make air travel impossibly expensive. He has suggested that rocket launches could 【C5】______be much cheaper since the cost of the rocket propellants are less than 1 percent of the full-price ticket for a launch. So, if a rocket could be simply refueled like a jetliner for another flight, the cost of space travel could drop to a 【C6】______of what it is now. The stresses of spaceflight on reused boosters, however, are much greater than those on jetliners. The economics will depend on how many times a booster can be flown, and how much the 【C7】______expense will be to repair the booster each time.
Reusable spaceships are not a new idea. NASA’s space shuttles were the first real 【C8】______at a reusable spaceship, but the shuttles proved more 【C9】______than hoped, requiring an army of technicians to 【C10】______them between flights. As a result, they ended up being more expensive than expendable rockets.
【C6】
选项
答案
H
解析
空格前是不定冠词a,空格后是介词of,且分析句子结构可知,本句中的介词to后面缺少宾语,因此,空格处应填入一个名词作宾语。空格所在句意为“因此,如果火箭能像喷气式飞机一样只需补充燃料便可再度飞行,那么太空旅行的成本会降到现在成本的______。”根据句意可知,H项fraction“少量,一点儿”为答案。
转载请注明原文地址:https://kaotiyun.com/show/LACK777K
0
专业英语四级
相关试题推荐
U.S.EarlyChildhoodEducationFiftyyearsago,【T1】______attendedearlyeducationprograms.Today,【T2】______thechildrenof
CollegeLifeAmericancollegeanduniversitystudentswho【T1】______awayfromtheirfamiliesaregenerallyhousedin【T2】____
HappyFourthofJuly!TherearesomeofthetraditionsassociatedwithIndependenceDayintheUnitedStates./July4this,
A、Thereporthastobebetween2,000and2,500words.B、Eachpersonisresponsibleforeachpartofthereportindividually.C、T
A.unspoiledB.renewC.originalD.livedE.architecturalF.initialG.someH.nearbyI.spoiledJ.maintainedK.vol
(1)InhisbookInDefenceofFood’.AnEater’sManifesto,MichaelPollanurgedpeopleto"Eatfood.Nottoomuch.Mostlyplants
(1)Nearly60millionvisitorsflocktothe384nationalparksacrossAmericaeveryyear.Andyouwon’thavetowanderfarfrom
Microblog,asanewlyemergedapplication,hassweptoverChina,whichservesasaconvenientmediumforthepublictoexpresso
CarSafety1.Thefocalpointoftheproject:RoadRage-e.g.Amanhitthedriverwhohad【T1】______himearlier【T1】______2.
Yellowknifeishometoaround20,000peopleand______aprimeviewoftheauroraborealis,alsocalledtheNorthernLights.
随机试题
(2010年10月,2008年10月)在巴纳德看来,组织的存在取决于协作系统平衡的维持。这种平衡有两个条件:一是组织的有效性;二是_________。
引起胸腔积液的机制是
护士注视患者的理想投射角度是
与溶血性链球菌感染有关的疾病是
一个测验能够测量出其所要测量的东西的程度是信度。()
某学生活泼、好动、乐观、灵活,喜欢交朋友,爱好广泛,稳定性差,缺少毅力,见异思迁。他的气质类型属于()。
已知f1(x),f2(x)均为随机变量的概率密度函数,则下列函数可以作为概率密度函数的是()
对于一个大型的软件项目,由于项目的复杂性,需要进行一系列的估算处理。主要按(61)和(62)手段进行。估算的方法分为3类:从项目的整体出发,进行(62)的方法称为(63)估算法。把待开发的软件细分,直到每一个子任务都已经明确所需要的开发工作量,然后把它们加
Mr.Ballwasamanofthirty-five.Theshopinwhichheworkedwasn’tmanaged(经营)wellandhe36less.Hehadhardlylefthisho
Whomcanyoutrustthesedays?ItisaquestionposedbyDavidHalpernofCambridgeUniversity,andtheresearchersattheDowni
最新回复
(
0
)