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
11
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 are 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/3271402.html
相关试题推荐
[originaltext]IntheDutchfishingportofVolendamnearAmsterdam,afirea
[originaltext]IntheDutchfishingportofVolendamnearAmsterdam,afirea
[originaltext]Itnowseemslikeadistantmemory.Lastsummer,GoogleInc.s
Whichofthefollowingwordscontainsoneboundmorpheme?A、Disappearance.B、Unto
[originaltext]Despitetwofailedattempts,theWhiteHouseonWednesdaysai
[originaltext]Despitetwofailedattempts,theWhiteHouseonWednesdaysai
[originaltext]JewishsettlerAviFarhan,determinednottogiveuphishome
[originaltext]GunmenassassinatedtwoSunniArabsinvolvedinthedraftingo
Ifonedoesnotworkoutregularly,hemay______.[originaltext]
[originaltext]Jerusalem,Jan.27.MarkSokolowescapedwithoutinjuryfromt
随机试题
Theshortstoriesoftenwithsurpriseendingssuchas"TheGiftofMagi"and"Th
______(为了寻找改善质量的途径),theyaregoingtohaveadiscussion.Inordertofindwayst
在吊顶工程中,吊扇、吊灯等重物应安装在( )上。A.龙骨 B.主龙骨 C.
若加强腹股沟前壁宜选择何种修补术()A.Bassini法 B.Fergu
根据《关于加强金融消费者权益保护工作的指导意见》,银行业金融机构应充分提示风险,
采用蒸馏法制备注射用水是利用热原的A被吸附性 B水溶性 C耐热性 D滤过性
中央银行增加基础货币的途径有()。A:增加现金发行 B:增加现金回笼 C:调
Wearefacingbothpromisingopportuniti
小王从市委宣传部调入到市公安局某部门工作,经该市公安局警察训练支队培训合格后在人
房地产估价的市场法中,可比实例在自身状况下的价格乘以()等于可比实例在估价对象状
最新回复
(
0
)