首页
登录
职称英语
A. attempt B. charged C. crucial D. delicate E. essentially F. eventually
A. attempt B. charged C. crucial D. delicate E. essentially F. eventually
游客
2023-10-25
90
管理
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. [br] 【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://tihaiku.com/zcyy/3129217.html
相关试题推荐
TheBentPyramidoutsideCairo______ancientEgypt’sfirstattempttobuildas
______humanbehaviormaybecausedbyeatingsubstancesthatupsetthedelicate
[A]benefits[B]different[C]eventually[D]instruments[E]moving[F]mul
[A]benefits[B]different[C]eventually[D]instruments[E]moving[F]mul
[A]benefits[B]different[C]eventually[D]instruments[E]moving[F]mul
[A]benefits[B]different[C]eventually[D]instruments[E]moving[F]mul
Itisbecauseofariseinairfares______they’vesurchargedus10%onthepri
Itisbecauseofariseinairfares_____they’vesurchargedus10%onthepric
We______anyattemptstoinfiltratecompanynetworkstoobtainuserinformation
(1)RogerRosenblatt’sbookBlackFiction,inattemptingtoapplyliteraryrat
随机试题
Inoursociety,wemustcommunicatewithpeople.Agreatdealofcommunicat
细部工程各分项的检验批应按下列规定划分()。A.同类制品每50间(处)应划分为
1型糖尿病的发病是由于A.胰岛素分泌绝对不足B.胰岛素相对不足以及靶细胞对胰岛素
在颌面发育的快速期中,第一恒磨牙萌出是第几快速期:()A.一 B.二
保证中药质量的前提是A.栽培条件B.采收加工C.产地D.土壤E.品种正确
财务会计报告能够提供有助于()进行合理决策的信息。A:投资者 B:管理当局
(2018年)根据《测绘地理信息行业信用指标体系》,某丙级测绘资质单位因市场不正
新安装或A及B类检修后投运的断路器及长期停用的断路器投入运行()小时内,应增
爱因斯坦曾说过,“我评定一个人的真正价值只有一个标准,即看他在多大程度上摆脱了‘
成釉细胞瘤内含有A.血性液体 B.黄褐色液体 C.透明、淡黄色水样液体 D
最新回复
(
0
)