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
2023-12-31
9
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 proved powerful【C1】______to shoot astronauts【C2】______the earth’s gravitational【C3】______and put them on the moon. We have now【C4】______space travelers.
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 expanding 【C10】______must escape, but it can do so only 【C11】______an opening that heads 【C12】______. As the gas is【C13】______with great force, it【C14】______the rocket in the【C15】______direction. Like the【C16】______of a gun when it is fired, it【C17】______the【C18】______ of nature described by Sir Isaac Newton when he found that "【C19】______every action, there is another equal and opposite【C20】______. " [br] 【C7】
选项
A、before
B、earlier
C、ago
D、ahead
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3321943.html
相关试题推荐
Constitutingoneoftheearliestengineeringtechniques,______inPaleolithict
NarratorListentoatalkonhomeautomationinamechanicalengineering
NarratorListentoatalkonhomeautomationinamechanicalengineeringclass.
NarratorListentoatalkonhomeautomationinamechanicalengineeringclass.
NarratorListentoatalkonhomeautomationinamechanicalengineeringclass.
NarratorListentoatalkonhomeautomationinamechanicalengineeringclass.
NarratorListentoatalkonhomeautomationinamechanicalengineeringclass.
[img]2014m9s/ct_etoefm_etoefread_1_20149[/img]Watt’ssteamenginesoonshowedwh
By1800morethanathousandsteamengineswereinuseintheBritishIsles,
AIntheliquid-fuelrocket,thepurposeofthevalvesBiscontroltheflowofth
随机试题
下列属于腹腔镜术后CO2气腹相关并发症的是:A.脏器损伤 B.胆漏 C.血管
对MRSA引起的肺炎,首选的抗生素是( )A.青霉素 B.头孢唑林 C.苯
依据《义务教育音乐课程标准(2011年版)》的基本理念,按照下列要求进行教学设计
证券公司长期次级债可按照一定比例计入净资本,到期期限在3、2、1年以上的,计入净
影响债券评级的财务指标()。 Ⅰ.总资产 Ⅱ.净资产 Ⅲ.EBITD
A. B. C. D.
某校六年级80名学生与2名老师共82人去公园春游,学校只准备了180瓶汽水,总务
德育的个体发展功能的发挥应注意()。 A.发挥德育的教育性 B.注重个体的享
E
下列工程建设其他费用中,属于建设单位管理费的有()。A.工程招标费 B.可行
最新回复
(
0
)