首页
登录
职称英语
[originaltext] Robert Goddard, American physicist and rocket scientist, once
[originaltext] Robert Goddard, American physicist and rocket scientist, once
游客
2024-02-28
34
管理
问题
Robert Goddard, American physicist and rocket scientist, once said that the dream of yesterday is the hope of today and the reality of tomorrow. It was his scientific work that gave hope to many of our dreams about space and then turned them into reality.
Robert Goddard’s many studies and tests in the early 1900s led to the first rocket. Then he developed rockets with more than one engine. Each engine pushed the rocket higher and higher out of Earth’s atmosphere. His ideas are still used today.So, in a way, every rocket that flies today is a Goddard rocket.
Robert Goddard was far ahead of his time. He developed and flew many rockets that got their power from solid fuels. Then, in 1925, he made and tested the first rocket engine using a soft chemical fuel. In 1926, he successfully fired the world’s first liquid-fuel rocket.
Robert Goddard died in 1945 of cancer. He was sixty-three years old. He received a special honor many years after his death. In 1959, the United States established the Goddard Space Flight Center near Washington, D.C. The Goddard Space Flight Center honors the man whose work proved that machines could travel out of Earth’s atmosphere, into space.
选项
A、1900.
B、1903.
C、1925.
D、1926
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3491254.html
相关试题推荐
[originaltext]Alaska,whichwascalledRussianAmericabeforeitwassoldtoth
[originaltext]Alaska,whichwascalledRussianAmericabeforeitwassoldtoth
[originaltext]TheengineofMargaret’scarwasnotrunningsmoothly.Thespark
[originaltext]TheengineofMargaret’scarwasnotrunningsmoothly.Thespark
[originaltext]TheRobinsonsweredrivingthroughPortMerlinRoadwhentheyhea
[originaltext]W:David,youplaytheviolin,don’tyou?M:Ididforabout6ye
[originaltext]Iwonderhowmanyofyouwouldwenttoworkinatallbuilding
[originaltext]Iwonderhowmanyofyouwouldwenttoworkinatallbuilding
[originaltext]W:Hi,Torn,youlooktiredthismorning.M:Iamnotfeelingwel
[originaltext]W:Hi,Torn,youlooktiredthismorning.M:Iamnotfeelingwel
随机试题
______hecomelate,givehimthemessage.A、HadB、ShouldC、WouldD、IfB虚拟语气题。shou
Scientistshavecomeupwithatheoryforwhytimeflieswhenyouarehavin
Isdrinkingalcoholduringpregnancydangerous?Yes,drinkingalcoholduri
二十五岁经产妇,妊娠28周出现皮肤瘙痒,巩膜轻微发黄十余日,无其他不适。血压12
下列哪项不是建立合格投资者制度的必要性()。A.基金管理人居于信息优势地位 B
计算现金流量时,以( )为基础,根据( )期初期末的变动数进行调整。A.资产
根据下列资料回答问题。 以下为某省的人口失业率图表。其中,黑色部分表示该省全省
虚拟培训的优点在于它的()A:仿真性 B:超时空性 C:自主性 D:低成本
在直接或间接持有上市公司己发行股份5%以上的股东单位或者在上市公司前5名股东单位
电网公司甲在4月与发电厂订了购销电合同1份,与保险公司签订了保险合同1份,直接与
最新回复
(
0
)