首页
登录
职称英语
NASA had planed to launch its space shuttle ______ in September. [originaltext]
NASA had planed to launch its space shuttle ______ in September. [originaltext]
游客
2023-11-20
85
管理
问题
NASA had planed to launch its space shuttle ______ in September.
NASA says it will not send another shuttle this year to the International Space Station (ISS). It had hoped to launch Atlantis in September, but put that mission off last week until November. Now, the further flight delay will give technicians even more time to understand why a piece of hard insulation foam broke away from the external fuel tank during Discovery’s July launch and to fix the problem.
It was such a chunk of foam that doomed Columbia and its seven-member crew by puncturing its wing during liftoff. NASA spent two-and-a half-years and millions of dollars to prevent another occurrence, and the July incident forced the agency to ground the shuttle fleet again until it could resolve the issue once and for all.
As a result, NASA will return three external fuel tanks to the manufacturer for analysis and redesign. Agency human space flight chief William Gerstenmeier says this means a shuttle cannot lift off before March, but emphasizes that March is only a planning target.
"We shouldn’t he thinking of the launch date as March. We put a planning target out there and now we’re going to do a detailed engineering assessment and analysis and start seeing if that makes sense. Then when a couple weeks have gone by and we’ve got enough intelligence together, then we can pick a launch date."
On Wednesday, NASA was accused of rushing, Discovery to launch in July, skipping safety improvements that led to the repeat foam shedding. The accusation came from seven members of a much larger group of experts who had overseen NASA’s shuttle safety modifications after the Columbia tragedy.
选项
A、Discover
B、Atlanta
C、Columbia
D、Atlantis
答案
D
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3202949.html
相关试题推荐
Howmanypeoplediedinlastmonth’sriot?[br][originaltext]AnEthiopian
Howmanypeoplediedinlastmonth’sriot?[originaltext]AnEthiopianfeder
Whydidmoviesdobetterthantheater?[br][originaltext]Uptoabout1915
Whydidmoviesdobetterthantheater?[br][originaltext]Uptoabout1915
Whydidmoviesdobetterthantheater?[originaltext]Uptoabout1915,movi
Howmanysuspectswerearrested?[br][originaltext]SecretaryofStateMade
Howmanysuspectswerearrested?[originaltext]SecretaryofStateMadeleine
WhatwasSulatimanHashim?[br][originaltext]PoliceinSingaporeareinvest
Thedemonstratorsdemanded______.[originaltext]About1,000supportersof
Themainideaofthispassageisthat______.[br][originaltext]Nowadays,
随机试题
Theroleofaprofessional()istohelptwopartiessolveconflictorappeasedi
Mentalillnessmayberesultedfrom______.[br]Becausemanyartists,writersa
在软件项目开发过程中,进行软件测试的目的是()。A.缩短软件开发的时间 B
应计收益率为8.21%时某5年期附息债券的价格为89.1303元,应计收益率为8
蚤传播鼠疫杆菌的方式属A.发育式B.增殖式C.发育增殖式D.经卵传递式E.机械性
某市政府下属P交通发展公司采用B0T模式新建一条经营性公路,该项目经招标、投标、
如果保证金标准为10%,那么1万元的保证金就可买卖()价值的期货合约A.2万元
案例三: 一般资料:求助者,女性,17岁,高中二年级学生。 案例介绍:求助者
下列哪一项属于正常咀嚼周期的特征()A.牙咬合接触时,下颌运动无明显的瞬息停
下列含有两个羧基的氨基酸是A.色氨酸 B.蛋氨酸 C.谷氨酸 D.丝氨酸
最新回复
(
0
)