首页
登录
职称英语
What was the most important job for the astronauts of Discovery? [originaltext]
What was the most important job for the astronauts of Discovery? [originaltext]
游客
2023-11-22
17
管理
问题
What was the most important job for the astronauts of Discovery?
Two spacewalking astronauts replaced a giant broken flywheel outside the International Space Station on Monday, shoring up an outpost steering system plagued with problems for more than three years. The swap was considered a high priority job for Discovery’s seven astronauts, who are in the midst of the first shuttle visit to the station since the February 2003 Columbia accident. The station is equipped with four of the American-made devices, each of which is about the size of a washing machine. At least two must be working properly to steer and steady the station as the 206-ton outpost travels around Earth at a speed of 5 miles per second. Otherwise, ground controllers must fire thrusters on Russian cargo freighters to do the job, exhausting limited outpost propellant reserves.
选项
A、Spacewalking.
B、Replacing the broken flywheel.
C、Entering the International Space Station.
D、Contacting the ground controllers.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3208343.html
相关试题推荐
[originaltext]M:OK,soifyou’rereadytotaketheplunge,ifyouwannagetou
[originaltext]M:OK,soifyou’rereadytotaketheplunge,ifyouwannagetou
[originaltext]M:OK,soifyou’rereadytotaketheplunge,ifyouwannagetou
[originaltext]M:IfyoulookatanylistofNewYear’sresolutionsyouwouldn’t
[originaltext]M:IfyoulookatanylistofNewYear’sresolutionsyouwouldn’t
[originaltext]M:Butdon’tmanymoreparentsliveapartfromtheirmarriedchil
[originaltext]M:Butdon’tmanymoreparentsliveapartfromtheirmarriedchil
[originaltext]M:Butdon’tmanymoreparentsliveapartfromtheirmarriedchil
[originaltext]M:Today,we’veProfessorMcKayonourMorningTalkShow.Goodmo
[originaltext]M:Today,we’veProfessorMcKayonourMorningTalkShow.Goodmo
随机试题
HowhasChristinespenthersummer?[originaltext]I:AndChristine,whatabouty
Spain’sKingJuanCarlos,with32yearsonthe【D1】______,turns70Saturday.
Thispassagemainlydiscusses______.[br]WhichofthefollowingisTRUEaccord
SpaceTourismA)Makeyourreservationsnow.Thespac
下列关于声誉风险管理的说法,不正确的是()。A.声誉危机管理规划给商业银行创造
男性,30岁,从三楼跌下左腹部跌伤,左6、7、8肋骨骨折,脾破裂、肠破裂。入院时
肾癌出现血尿提示A.早期肾癌 B.晚期肾癌 C.肿瘤内出血 D.肾癌已侵入
下列软件中属于系统软件的是()。A.人事管理软件 B.工资管理软件 C.C语
中国公民陈某2021年的有关收支情况如下: (1)2月喜迎春节,购买福利彩票中
某混凝土工程,9月份计划工作量为5000m3,计划单价为400元/m3;而9月份
最新回复
(
0
)