首页
登录
职称英语
The rocket engine, with its steady roar like that of a waterfall or a thunde
The rocket engine, with its steady roar like that of a waterfall or a thunde
游客
2024-01-18
47
管理
问题
The rocket engine, with its steady roar like that of a waterfall or a thunderstorm, is an impressive symbol of the new space age. Rocket engines have【C1】______powerful enough to shoot astronauts【C2】______the earth’s gravitational pull and【C3】______them on the moon. We have now become【C4】______in space.
Impressive and complex【C5】______it may appear, the rocket, which was【C6】______in China over 800 years【C7】______, is a relatively simple device. Fuel that is【C8】______in the rocket engine changes【C9】______gas. The hot and rapidly【C10】______gas must escape, but it can do so only through an opening that faces backward. As the gas is radiated with great force, it pushes the rocket in the opposite direction. [br] 【C7】
选项
A、in advance
B、before
C、earlier
D、ago
答案
D
解析
ago“在……以前”。该句为which引导的定语从句,意为“中国发明火箭是在距今800多年前”。句中谓语是一般过去时,故应选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3373957.html
相关试题推荐
Althoughthewindhas______,therainremainssteady,soyoustillneedarain
Althoughthewindhas______,therainremainssteady,soyoustillneedarainco
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Therocketengine,withitssteadyroarlikethatofawaterfallorathunde
Whatmakesthespaceshuttle______isthatittakesofflikearocketbutlandsl
TheengineersAmadetwobigplansBforthedam,oneofCwhatwasneverputDinus
随机试题
[img]2016m3x/ct_eyyjsbz2014j_eyyjsbreadc_0354_20163[/img]Guernicawasthel
Ah,myveryfavoritepromotionalproductofall,therefrigeratormagnet.Th
Whoarethespeakers?[br][originaltext]M:Wouldyouliketogotothecampus
引起血小板聚集最重要的物质是( )A.血栓烷 B.胶原 C.ADP D.
下列各项中,不符合内部牵制的要求的是()。A、出纳人员管票据 B、出纳人员
根据资本来源和运用地域的不同,证券投资基金可分为()等。A:国际基金 B:海
职工参与企业民主管理的形式包括( )A.个人参与 B.合作参与 C.岗位参
中国特色社会主义制度符合我国国情,集中体现了中国特色社会主义的特点和优势。这是因
可用于治理通货膨胀的货币政策措施是( )。A.提高法定存款准备金率 B.降低
关于企业愿景的说法,正确的是( )。A.企业愿景管理包括开发愿景、修正愿景、瞄
最新回复
(
0
)