首页
登录
职称英语
What is the most important factor for a rocket to escape from the Earth? [br] Ho
What is the most important factor for a rocket to escape from the Earth? [br] Ho
游客
2024-07-24
41
管理
问题
What is the most important factor for a rocket to escape from the Earth? [br] How fast will a rocket go to escape completely from the Earth’s gravity? ______
选项
A、Seventy miles per second.
B、Seven thousand miles per hour.
C、Twenty-five thousand miles per second.
D、Twenty-five thousand miles per hour.
答案
D
解析
从文章的第二段最后一句,可以得知逃离地心引力的速度是每秒7英里或者每小时2万5千英里。所以本题的答案应该是D。
转载请注明原文地址:http://tihaiku.com/zcyy/3691824.html
相关试题推荐
Thepurposeofthispassageismainlytotellus______.[br]Themostimportant
Wehadaroadaccidentlastweekend,butwewere(luck)______toescapeinjury.
Thepolicecaughthim______overthewallofthefactory.A、climbingB、climbedC
Howmanycomputerswillthefactory______thisyear?A、turnupB、turnoutC、turn
WhatisthemostimportantfactorforarockettoescapefromtheEarth?______
WhatisthemostimportantfactorforarockettoescapefromtheEarth?______
WhatisthemostimportantfactorforarockettoescapefromtheEarth?______
Rivershavebeenimportanttoman______.[br]Energyisobtainedfromriversby
Rivershavebeenimportanttoman______.[br]Inheavilypopulatedagricultural
Fromthebeginningrivershaveplayedanimportantpartinthelifeofman.
随机试题
Whatisthewomanbuying?[originaltext]WomanCouldyouhelpmechoosesomelong
[originaltext]Hello,everyone.First,Ihaveaquestiontoaskallofyou.
[originaltext]M:Itseemstherestaurantsherehavelittlebusinessthesedays.
A.2 B.4 C.-2 D.-4 E.士4
下列关于负有安全生产监督管理职责的部门行使职权的说法,错误的是()。A.进入生
新生儿正常时血钾即偏高,出生几天后如明显缺钾每日给钾总量为A.1~3mmol/k
某男,30岁,要求固定修复,检查缺失,残根,叩(+),6牙体缺损,叩(-),余牙
迪拜主权债务危机是属于国别风险中的()。A.社会风险 B.政治风险 C
证券投资基金的运作活动从管理人的角度看,可以分为基金的市场营销、基金的投资管理与
安全特低电压配电回路SELV的外露可导电部分应符合以下哪些要求?()A.安全特
最新回复
(
0
)