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
2024-10-29
32
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/3822911.html
相关试题推荐
WhatwillbetheKosovosituationinthenearfuture?[originaltext](23[B])
Accordingtothenews,Rodinapartyisbecomingimportant______.[originaltext]
Howmuchisthebudgetplanfor2005?[br][originaltext](21[D])TheHouse
Howmuchisthebudgetplanfor2005?[originaltext](21[D])TheHousepassed
Whichofthefollowingisthebesttitleofthepassage?[br][originaltext]
Whichofthefollowingisthebesttitleofthepassage?[originaltext]Most
Whatisthepurposeofthisclassdiscussion?[br][originaltext]M:I’mreally
Whatisthepurposeofthisclassdiscussion?[originaltext]M:I’mreallysorry,
Whatisthewoman’smainpurposeinthisconversation?[br][originaltext]W:Dr
WhatdidAppleComputerInc.introduceonTuesday?[originaltext]AppleCompu
随机试题
Thewomanwas______beforewhenexamswerecoming.[br][originaltext]W:Hi,Bil
FamilySoc
Inspringandsummer,themostpopular__i
A.①② B.③④ C.②③ D.②④
沥青的塑性用以下哪种指标表示?()A.软化点 B.延伸度 C.黏滞度
下列哪项不是气胸的分类()A.高压性气胸 B.闭合性气胸 C.开放性气
某上市公司因信息系统故障,造成年报未在规定日期前发布,另外近期高级管理人员发生频
监理工程师在某工业工程施工过程中进行质量控制,控制的主要内容有: (1)协助承
下列属于批复的写作要求的是:() A.一文一复 B.慎重及时 C.明确
考虑到作业时间和动作能量消耗,应用体力劳动强度指数将体力劳动强度分为Ⅰ、Ⅱ、Ⅲ、
最新回复
(
0
)