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
48
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
Thetableclearlyreflectsthestatisticsofjobsatisfactionofthestaffi
关于趋势线,下列说法正确的是()。A、趋势线分为长期趋势线与短期趋势线两种B、反映价格变动的趋势线是一成不变的C、价格不论是上升还是下跌,在任一发展
Realinnovationisadyingart.It’struethatcreativity—thebusinessofth
A.二尖瓣狭窄 B.二尖瓣关闭不全 C.主动脉窦瘤破裂 D.动脉导管未闭
名下金融资产不低于人民币()的个人投资者,为《公司债券发行与交易管理办法》
Thechangeinthatvillagewasmiraculou
A. B. C. D.
综合治疗台表面消毒使用的方法是A.次性纸巾覆盖 B.毛巾覆盖 C.消毒液擦拭
已计提贷款损失准备的贷款价值以后又得以恢复的,其会计处理应为()。A:借记“贷款
(2021年真题)某项工程合同价12000万元,其中材料和设备占百分之50,已知
最新回复
(
0
)