首页
登录
职称英语
[originaltext] The U.S. Space Agency NASA says Russia’s orbiting Mir space st
[originaltext] The U.S. Space Agency NASA says Russia’s orbiting Mir space st
游客
2023-12-20
17
管理
问题
The U.S. Space Agency NASA says Russia’s orbiting Mir space station has lost its primary and backup oxygen sources. If the problem is not fixed, the 3-member crew would have to abort the mission. But, a Russian space official in Moscow told Reuters News Agency that only the primary generator developed trouble and that the unit was repaired by the crew. More about the latest problem on board the space station from VOA’s Nick Simming.
"The U.S. Space Agency says Mir’s two primary sources of oxygen have stopped working and now there is only sever- al day’s supply of oxygen inside Mir’s cabin. Mir’s backup oxygen generating candles failed Monday just after the normal oxygen supply system used by the spacecraft unexpectedly shut down. That normal oxygen source, a method that extracts oxygen from water, had been turned off for several days to conserve energy heated and automatically shut down. NASA’s spokesman Michael Brock Hais says if Mir’s oxygen supply problem is not fixed soon, the two Russians and one American on board will have to abort. This problem is the most serious to plague the space station which has endured power loss, computer malfunction and even a collision with a supply vessel all in the past six months. Nick Simming VOA News, Washington."
选项
A、It has lost its primary oxygen sources.
B、It has lost its backup oxygen sources.
C、It has lost both the primary and the backup oxygen sources.
D、It has lost neither the primary or the backup oxygen sources.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3288896.html
相关试题推荐
[originaltext]Theygaveahouse-warmingpartyyesterday,buttobefrank,their
[originaltext]Theygaveahouse-warmingpartyyesterday,buttobefrank,their
[originaltext]Alicekeptgettingtherun-aroundeverytimeshecalledthestore
[originaltext]Alicekeptgettingtherun-aroundeverytimeshecalledthestore
[originaltext]Alicekeptgettingtherun-aroundeverytimeshecalledthestore
[originaltext]Alicekeptgettingtherun-aroundeverytimeshecalledthestore
[originaltext]It’snosecretthathigherlearningmeanshigherearning.Accordi
[originaltext]SanPauloisSouthAmerica’sleadingindustrialcity,andtwoof
[originaltext]SanPauloisSouthAmerica’sleadingindustrialcity,andtwoof
[originaltext]Woman:Isn’tadvertisingreallyakindoflying?Man:Idon
随机试题
LearningHowtoLearnI.ViewsonlearningA.Learning
HowtoLovetheWorldAsItIs?[A]Itstruckmerecentlythatalotofp
闭合水准测量路线的高差闭合差计算公式为( )。A、fh=∑h往+∑h返 B
对双母线或单母线分段接线,宜采用有充电保护的断路器对母线充电。对于3/2断路器接
某砖混结构多功能餐厅,上下层墙体厚度相同,层高相同,采用MU20混凝土普通砖和M
假定某门学科的测验成绩分布为正态分布,从某一学区随机抽取的65名考生的平均分为
古巴比伦苏美尔时期学校里的教师被称为()A.专家 B.校长 C.大兄长 D
没有下影线的阴线表明收盘价正好与最低价相等。()
公开报价包括()。A:单边报价 B:对话报价 C:双边报价 D:反向报价
沥青混凝土路面施工质量控制关键点有( )。A.沥青材料的检查与试验 B.沥青混
最新回复
(
0
)