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
2024-09-04
36
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] 【C7】
选项
答案
I
解析
空格前是定冠词the,空格后是名词expense,因此,空格处应填入一个形容词或起形容词作用的词一起作expense的定语。根据上下文语境可知,此处讲的是决定太空旅行花费的几个因素。上一句提到,喷气式飞机所需承受的压力远远比不上太空旅行对再次利用的推进器产生的压力,这就导致该推进器需要经常维修,因此,此处是说,太空旅行的费用取决于推进器可重复使用的次数以及每一次维修所需要的花费,故I项individual“单独的,个人的”为答案。由本句最后的each time也可得到提示。
转载请注明原文地址:https://tihaiku.com/zcyy/3743786.html
相关试题推荐
Maryhopestobe_____fromhospitalnextweek.A、dismissedB、dischargedC、expelled
TheauthorsoftheUnitedStatesConstitutionattemptedtoestablishaneffectiv
Shehopedherbusinesswouldeventually______intoa$1billionbusinessinJap
Thisgovernmentofficial’s______ingamblinghaseventuallybroughtabouthisr
A.benefitsB.differentC.eventuallyD.instrumentsE.movingF.multipl
A.benefitsB.differentC.eventuallyD.instrumentsE.movingF.multipl
A.benefitsB.differentC.eventuallyD.instrumentsE.movingF.multipl
A.benefitsB.differentC.eventuallyD.instrumentsE.movingF.multipl
A.benefitsB.differentC.eventuallyD.instrumentsE.movingF.multipl
In1997hewas______ofmurderandsentencedtolifeimprisonment.A、chargedB、sue
随机试题
Formakeadobebricks,workersmixsandandclayormudwithwaterandsmallqua
若在一个IPv4网络中一共划分了15个VLAN,则该网络中__()_。A.
Thechangeinthatvillagewasmiraculou
(2016年5月)从薪酬的实质而言,薪酬关系是一种()。A.约定关系 B.交
怎样将带小数的八进制数转换成二进制数?并完成选择题:将八进制数67.721转换成
(2013年)某改扩建工程项目位于重要生态敏感区,在其原厂界范围内改建面积6km
男,45岁。8个月前骑电动车时摔倒,腹部被车把撞伤并疼痛。经治疗后缓解,6个月前
患者,女,49岁。发现右乳外上象限无痛、单发、质硬、边界欠清的肿块,最常见的疾病
80岁男性,突然出现头痛、呕吐、意识不清,血压27/16kPa,右侧瞳孔大,左侧
14岁男孩,因腹痛来院就诊。查体:双下肢出现对称性片状小出血点,尿常规发现血尿(
最新回复
(
0
)