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
2023-10-06
35
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:https://tihaiku.com/zcyy/3074866.html
相关试题推荐
Accordingtothepassage,Indiannameswereimportantbecausethey______.[br]
Accordingtothepassage,Indiannameswereimportantbecausethey______.[br]
Accordingtothepassage,Indiannameswereimportantbecausethey______.[br]
Accordingtothepassage,Indiannameswereimportantbecausethey______.[br]
Accordingtothepassage,Indiannameswereimportantbecausethey______.[br]
Accordingtothepassage,Indiannameswereimportantbecausethey______.[br]
Mannersareimportanttohappyrelationsamongpeople.Everyonelikesapersonw
Thepurposeofthispassageismainlytotellus______.[br]Themostimportant
Thepurposeofthispassageismainlytotellus______.[br]Themostimportant
Wehadaroadaccidentlastweekend,butwewere(luck)______toescapeinjury.
随机试题
[originaltext]POLICEintheUKhavelaunchedastopandsearchprogramarou
SciencewriterTomStandagedrawsaptparallelsbetweenthetelegraphandt
A:Whattimeisthismeetingsupposedtobegin?B:I’mnotsure.Ithoughtitw
情绪既可以成为意志行动的动力,也可以成为意志行动的阻力。
破坏性检验不可能对全部产品都做检验。()
始基子宫又称A.无子宫 B.无宫腔子宫 C.子宫较正常小 D.幼稚子宫
小儿形体望诊的顺序是()A、毛发、指甲、四肢、躯干、头囟 B、躯干、四肢、
绘画《大象》 1、试讲题目:绘画《大象》 2、基本要求 (1)画出大象
一个工程项目必须在一个()范围内,由一个或若干个互有内在联系的单项工程所
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)