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
77
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、one, one
B、one, two
C、two, two
D、two, one
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3288898.html
相关试题推荐
[originaltext]Atmajorcollegeorhighschoolsportsevents,cheerleaders,
[originaltext]Atmajorcollegeorhighschoolsportsevents,cheerleaders,
[originaltext]W:Excuseme,couldIaskyousomequestions?M:Iworkforanad
[originaltext]W:Excuseme,couldIaskyousomequestions?M:Iworkforanad
[originaltext]JohnandLisa’sskillsarecomplementary,she’sgoodatroutinew
[originaltext]JohnandLisa’sskillsarecomplementary,she’sgoodatroutinew
[originaltext]JohnandLisa’sskillsarecomplementary,she’sgoodatroutinew
[originaltext]JohnandLisa’sskillsarecomplementary,she’sgoodatroutinew
[originaltext]Henryistheeldestsonoftheoldmanwhojustdied,henceheis
[originaltext]W:Hi,John!M:Oh.Hi,Laura.What’reyoudoinghere?W:Uh...I
随机试题
HotlineshavebecomecommoninChina.Someradiobroadcastingstationsuseh
Itisunderstandablethatthoughadolescentmaturationalanddevelopmentalstate
Completethetablebelow.WriteNOMORETHANTHREEWORDSAND/ORANUMBERforeac
Internet不仅仅是一个国际性的计算机网络,更重要的是,它是一个面向全世界、
机械零件的工作安全系数是()。A.零件材料的极限应力比许用应力 B.零件材
基本卫生保健的意义是()A.充分享有健康权 B.促进社会经济发展 C.提高
统计调查可分为全面调查和非全面调查,下述调查属于全面调查的是()。A.对某种
临床常用的质控菌株更换应至少A.每天一次B.每周一次C.每月一次D.每月两次E.
患者,男,50岁,因“口内多数牙齿缺失,要求修复”来医院治疗。患者平躺在治疗椅
D
最新回复
(
0
)