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
What’s happening?
What’s happening?
admin
2012-04-23
53
问题
What’s happening?
The first prototype of an aircraft intended to revolutionize travel and shatter speed records was destroyed during its maiden flight on Saturday after a booster rocket carrying it aloft veered out of control and tumbled from the sky.
US space scientists were forced to destroy the unmanned X-43A prototype in midair just minutes before the plane was due to fire the oxygen scooping "scramjet" engine designed to drive it at seven times the speed of sound.
NASA cameras aboard two F-18 chase planes showed the Pegasus rocket careening off course and falling out of control from the sky before controlers triggered on board explosures to destroy it over the Pacific Ocean at about 1:45 pm PDT (4:45 pm EDT/2045 GMT)
Pieces of the booster rocket and the small, black X-43A prototype, part of NASA’ s "Hyper-X" programme, fell into the sea.
选项
A、To revolutionize research and develop speed.
B、To revolutionize travel and shatter speed records.
C、To revolutionize flight and explore outer space.
D、To revolutionize exploration and increase experienc
答案
B
解析
prototype的proto为prefix,意思为"earliest; original"原型的,即:flint or original example of sth that has been or will be copied or developed; model or preliminary version。
转载请注明原文地址:https://www.kaotiyun.com/show/jGiO777K
0
专业英语八级
相关试题推荐
Ascollegeseniorshurtleintothejobhunt,littlefibsontheresume--forexample,claimingsdegreewhenthey’rethreecredit
LanguageFamiliesAllofthelanguageswithinalanguagefamilyare【1】andallofthemhaveasimilarhistory.Let’stakeabr
LanguageFamiliesAllofthelanguageswithinalanguagefamilyare【1】andallofthemhaveasimilarhistory.Let’stakeabr
Yetthedifferenceintoneandlanguagemuststrikeus,assoonasitisphilosophythatspeaks:thatchangeshouldremindusth
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecauseitcannotreceivethevisualstimulusfromitsenv
Ablindbabyisdoublyhandicapped.Notonlyisitunabletosee,butbecauseitcannotreceivethevisualstimulusfromitsenv
A、BecauseheescapedwithoutinjuryfromthesecondtoweroftheWorldTradeCenter.B、Becausehewasseriouslyinjuredduringt
20世纪末的中国,经过新民主主义革命,已非20世纪初的中国,但是我们一直到了1979年,才真正地找到了“发展才是硬件”的道理,似乎是太晚了一点。如果我们在1949年建国之后,在清除旧社会残渣余孽的同时,把主要精力放在发展经济这个“硬件”上世纪末的中国将会是
中国是一个地域辽阔、有着数千年悠久历史的多民族国家,有着秀丽的自然风光、众多的名胜古迹和丰富多彩的灿烂文化,旅游资源十分丰富。改革开放以来,中国经济以年平均近10%的速度持续增长,各项事业蓬勃发展,人民生活水平显著提高,为旅游业的兴旺奠定了坚实的基础。中国
What’shappening?
随机试题
考生文件夹下有一个数据库文件"samp2.mdb",其中存在已经设计好的两个表对象"tTeacher1"和"tTeacher2"。请按以下要求完成设计:(1)创建一个查询,查找并显示在职教师的"编号"、"姓名"、"年龄"和"性别"4个字段内容,将查询命名
我国儿童电影发展情况的确__________,每年拍摄的儿童电影缺少专门人员或机构进行市场宣传和推广,能够上映的少之又少,即使上映也难逃“影院一日游”。那是不是就意味着儿童电影在中国已经__________?在我国,未成年人是一个庞大的群体,随着生活水平的
产褥期母体变化最大的器官
水电厂控制屏、保护屏上的设备与屏顶净距不应小于120mm,与左右侧净距不应小于何值?
二级公路路基地表排水设施设计中,取降雨的重现期为()年。
城市总体规划纲要的主要内容不包括()
关于组织设计的陈述,正确的是()。
劳动者订立劳动合同时的法定最低年龄为()。
WhatdoesWeitzman’snewmethodsuggest?Whatdoesthelastsentenceinparagraph4mean?
Lastyear’seconomyshouldhavewontheOscarforthebestpicture.Growthingrossdomesticproductwas4.1percents)profits
最新回复
(
0
)