首页
登录
职称英语
What is the most important factor for a rocket to escape from the Earth? [br] Wh
What is the most important factor for a rocket to escape from the Earth? [br] Wh
游客
2024-07-24
5
管理
问题
What is the most important factor for a rocket to escape from the Earth? [br] When a bicycle "coasts" downhill, it ______.
选项
A、runs along the hillside
B、does not need any further power
C、runs freely to all directions
D、does not meet with air resistance
答案
B
解析
从第三段最后一句"自由落体并不意味着火箭会朝地球落下来,而是不需要外力的帮助在太空中自由飞行,就像沿山坡滑行的自行车一样",可以判断本题的答案是B。
转载请注明原文地址:https://tihaiku.com/zcyy/3691826.html
相关试题推荐
Asinglerocketisnotpowerfulenoughtosendaspaceshipintospace.Thisi
WhatisthemostimportantfactorforarockettoescapefromtheEarth?[br]Wh
WhatisthemostimportantfactorforarockettoescapefromtheEarth?[br]Wh
WhatisthemostimportantfactorforarockettoescapefromtheEarth?[br]As
WhatisthemostimportantfactorforarockettoescapefromtheEarth?[br]Ho
Rivershavebeenimportanttoman______.[br]Inheavilypopulatedagricultural
Rivershavebeenimportanttoman______.[br]Aheavilypopulatedagricultural
Rivershavebeenimportanttoman______.[br]Inancienttimesempiresandcivi
OneimportantuseofInternetiscommunicationbetweencomputerusersbye-m
OneimportantuseofInternetiscommunicationbetweencomputerusersbye-m
随机试题
[originaltext]W:AndnowhereisourguestHarrisonBlacktotellusaboutLond
Thegeographicallocationofacountryanditsphysical【C1】______areveryimpor
BigisBackA)Corporategiantswereonthedefensivefordecades.Nowt
Ourholidayisdoomedtofailurewithoutyou.A、woulddoomB、wouldhavebeendoom
下图坝体分区中,Ⅱ区属于()。 A.上、下游最低水位以下坝体外部表面混
进行防水卷材热处理尺寸变化事率试验时,热处理尺寸变化率应为3块试祥尺寸变化率的平
共用题干 ElectromagneticEnergy1Whiteligh
截至2018年底,中国人工智能市场规模约为238.2亿元,同比增长率达到56.6
中药材性状鉴别通常采用经验鉴别术语,这些鉴别术语言简意赅、好记易懂。断面可见筋脉
水利工程质量事故分类中,属于必要条件的是()。A.直接经济损失的大小 B
最新回复
(
0
)