首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
______ make it possible for astronauts to reach the moon.
______ make it possible for astronauts to reach the moon.
admin
2010-06-30
57
问题
______ make it possible for astronauts to reach the moon.
The astronauts could not have reached the moon without the invention of rockets. We live in the age of rockets, but do you know that rockets are not a modem invention? For centuries, rockets were used to entertain people. The Chinese used rockets for fireworks. In the 13th certury, rockets were first used in war. The Mongols used rockets to attack a Chinese city in 1232. These early rockets could not travel very far. However, in 1885 a Russian scientist discovered a better fuel for rockets. This liquid fuel gave rockets much more power. Then in 1919 a new age of rockets began. In that year an American scientist, Robert Goddard, said that it was possible to send a rocket to the moon! Goddard launched his first liquid-fuelled rocket in 1923. It flew 184 feet. Al most 12 years later, he sent a rocket 7,500 feet into the air in 1935. Russian rockets sent the first satellite into orbit in 1957. Just 12 years later the first man walked on the moon —— thanks to rockets! Where will rockets take us next?
选项
答案
A Russian scientist
解析
转载请注明原文地址:https://kaotiyun.com/show/gOPd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
WhichofthefollowingistheacceptabletablemannerinBritain?
Readthefollowingtextandanswerquestions71—80bychoosingA,B,CorD.Somechoicesmayberequiredmorethanonce.A=Wa
AccordingtotheAmericanAcademyofDermatology,anestimated10to50millionpeopleinthiscountryhaveanallergicreaction
Payandproductivity,itisgenerallyassumed,shouldberelated.Buttherelationshipseemstoweaken【C1】______peoplegetolder
ThefollowingisaninterviewwithEmmaRichards,oneofBritain’smostsuccessfulsailorsandtheyoungestpersontocompletet
ThefollowingisaninterviewwithEmmaRichards,oneofBritain’smostsuccessfulsailorsandtheyoungestpersontocompletet
Asinternationalcommercegrows,thereisanamazingdevelopmentwhichisexpandingatever-increasingrate—businessontheInte
Whatisthewomandoingwhenthemaninterruptsher?
Whyarewefarfromsatisfiedwithourbasicneeds?
Whatisthewomandoingwhenthemaninterruptsher?
随机试题
关于己糖激酶,叙述恰当的是
含有3,5-二羟基羧酸活性结构和嘧啶环骨架的HMG-CoA还原酶抑制剂的调血脂药物是
张某旅游时抱着当地一小女孩拍摄了一张照片,并将照片放在自己的博客中,后来发现该照片被用在某杂志的封面,并配以“母女情深”的文字说明。张某并未结婚,朋友看到杂志后纷纷询问张某,熟人对此也议论纷纷,张某深受困扰。下列哪些说法:是正确的?(卷三2008年真题试卷
根据《建筑工程施工合同(示范文本)》GF—2017—0201,可以顺延工期的情况有()。
当前下列国家中,国民用于购买食物费用占口常支出平均比重最高的是:
小明在观看世界杯比赛后,学会了踢足球。从班杜拉的观察学习角度出发,小明学会踢足球的过程包括()。
Oneimportantpartofpara-linguisticsisaccent,whichdescribesthosefeaturesofpronunciationthatidentifyapersoneither
某工程计划图如下图所示,弧上的标记为作业编码及其需要的完成时间(天),作业E最迟应在第________天开始。
请根据以下各小题的要求设计VisualBasic应用程序(包括界面和代码)。(1)在名称为Forml、标题为“标签”的窗体上画一个名称为Labell的标签,并设置适当属性以满足以下要求:①标签的内容为“计算机等级考试”;②标签可根据显示内容自动调整
Globaluserscanaccessthepowerfulsearchenginetolocateanyofthe9,000ofcompaniesarchivedbyname,______orcodenum
最新回复
(
0
)