首页
登录
职称英语
Which of the following statements is true? [originaltext] The US space agency
Which of the following statements is true? [originaltext] The US space agency
游客
2023-12-14
12
管理
问题
Which of the following statements is true?
The US space agency NASA says it has discovered another problem with the space shuttle Discovery and astronauts may need to repair the spacecraft before it can safely return to earth.
Mission controllers say they are comfortable that Discovery’s protective heat tiles are in good shape for landing but they remain concerned about the gap filler, a material between and underneath the tiles that seals them and reduces friction, protecting the orbiter from the searing heat of reentry into earth’s atmosphere. The gap filler is protruding in some areas and shuttle lead flight director Paul Hill says engineers are trying to come up with some answers. There are a team of engineers that are working aggressively at options to go and make that gap filler safe if it is decided that it’s an issue and there is another team of engineers that are off looking at the aero-heating and the effects of leaving those gap fillers in place and protruding. Final results are expected to be obtained on aero-heating and a decision on whether anything needs to be done about the gap fillers on Monday. Meanwhile NASA spokesman Rob Navias says the space shuttle Atlantis is standing by to perform a rescue mission if necessary.
选项
A、There are two groups of engineers who are working on the alternative solutions of the program.
B、Discovery’s protective heat tiles ate out of order.
C、NASA has made the decision on whether anything needs to be done about the gap fillers.
D、According to NASA there is only a problem with Discovery and it can return to the earth safely.
答案
A
解析
转载请注明原文地址:https://www.tihaiku.com/zcyy/3272971.html
相关试题推荐
[originaltext]OfficialsinnorthernBrazilsayafour-dayriotatanotoriou
[originaltext]W:Hi,Leigh,goodtoseeyou.M:Thankyou.W:Hmm,thatsounds
[originaltext]W:Hi,Leigh,goodtoseeyou.M:Thankyou.W:Hmm,thatsounds
[originaltext]W:Hi,Leigh,goodtoseeyou.M:Thankyou.W:Hmm,thatsounds
[originaltext]TheGermanParliamentwillshortlyholdavoteofconfidencei
[originaltext]Americanscientistsaremakingafirstattempttofireaproje
Haveyouheardofthelegendoftheround-tableknights?Whichofthefollowing
[originaltext]RussianMilitarysaysitwillretaliateforaChechenrebelam
[originaltext]FormerItalianPrimeMinisterSilvoBerlusconihascalledon
[originaltext]ArmyexplosiveexpertsinNorthernIrelandhavecarriedouta
随机试题
[originaltext]ThegoldengatebridgejoinsthebeautifulcityofSanFrancis
Anewhigh-performancecontactlensunderdevelopmentatthedepartmentfor
大兴安岭(GreatKhinganMountains)位于黑龙江省东北部,南北长约1220公里。那里气候极度寒冷,在满语(Manchu)中,“兴安”
A.电路有储能元件L,要产生过渡过程 B.电路有储能元件且发生换路,要产生过渡
在安全测试中,模拟攻击试验以模拟攻击来验证软件或信息系统的安全防护能力,其中拒绝
专业服务营销特有的困难表现在()A.对第三方的责任 B.客户的不确定性
A.代谢性酸中毒 B.呼吸性酸中毒 C.呼吸性酸中毒并发代谢性酸中毒 D.
共用题干 SomeSchoolingonBackpacksAccordi
患者,男,65岁,因发热、咳嗽、胸痛、呼吸困难入院,诊断为肺炎球菌性肺炎,拟用青
1.“两个转变”的基本内涵是什么?
最新回复
(
0
)