首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Anyone who has ridden on a railroad train knows how rapidly another train【C1】______by when it is travelling in the【C2】______dire
Anyone who has ridden on a railroad train knows how rapidly another train【C1】______by when it is travelling in the【C2】______dire
admin
2019-11-21
25
问题
Anyone who has ridden on a railroad train knows how rapidly another train【C1】______by when it is travelling in the【C2】______direction and conversely how it may look almost【C3】______when it is moving in the same direction.【C4】______a train at a station starts to move forward【C5】______gently that passengers feels no backward movement【C6】______. Then if they happened to【C7】______the window and see another train slide past on the next track, they have no way of knowing【C8】______train is in motion and which is at rest;【C9】______can they tell how fast either one is moving or in which direction. The only way they can judge their【C10】______is by looking out the other side of the car for some fixed body of reference【C11】______the station platform or a single light. Newton was【C12】______these tricks of motion, only he thought in terms of ships. He knew that on a calm day at sea a sailor can shave himself or drink soup as【C13】______as when his ship is lying motionless in harbor. The water in his basin, the soup in his bowl, will remain【C14】______whether the ship is making five knots, fifteen knots or twety-five knots. So【C15】______he looks hard at the sea it will be【C16】______for him to know how fast his ship is moving or indeed if it is moving at all. Of course, if the sea should get rough or the ship changes course suddenly, 【C17】______he will sense his state of motion. But even supposing that we have the idealized conditions of a glass calm sea and a silent ship, nothing that happens below decks, no amount of observation or mechanical experiment, performed inside the ship, will reveal its velocity through the sea. The physical【C18】______based on these facts was formulated by Newton in 1687. "The motions of bodies included in a given space, " he wrote, "are the same【C19】______themselves, whether that space is at rest or moves uniformly【C20】______in a straight line. "
【C14】
选项
A、unruffled
B、uneven
C、unstable
D、uncertain
答案
A
解析
unruffled平稳的,平静的;uncertain不确定的(指对事物持无把握的态度);uneven不平坦的,凹凸的(指道路不平的);unstable不稳定的,不固定的,精神上不稳定的。
转载请注明原文地址:https://kaotiyun.com/show/07DC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
Itisnecessarythataperson______exerciseseverydayifhewishestobehealthy.
Recently,however,IwasdisappointedtoseethatitalsodecideshowI’mtreatedasaperson.
A.Weshouldcontinuetodeepenreformofthecadreandpersonnelsystemandfocusontraininghigh-calibercadresandpersonnel
A.TodaysocialistChinaisstandingrock-firmintheEast,orientedtowardmodernization,theworldandthefuture.B.Thegrea
A.Democracywillkeepdevelopingalongwiththeprogressofsocialism.B.Asagreatnewrevolution,reformandopeningupare
Isupposethatthemostbasicandpowerfulwaytoconnecttoanotherpersonistolisten.Justlisten.(71)Perhapsthemostimpor
Spacevehicleswerelaunchedintoouterspace______searchofanotherlivingplanet.
Mostpersonnelmanagersagreethatjobinterviewsareoneoftheleastobjectiverecruitmentmethods.
A、Thecupisfullalready.B、Shewouldbeimpolitetoacceptanother.C、Sheisfullalready.D、Shehasoverdone.C
Anyonewhohasriddenonarailroadtrainknowshowrapidlyanothertrain【C1】______bywhenitistravellinginthe【C2】______dire
随机试题
孕妇心电图因心脏左移出现电轴轻度右偏。()
热病汗不出及阴虚之盗汗均可用
维生素D3前体,在下列哪个部分形成
体内最重要的脱氨方式是
城市规划的核心,是搞好城市布局,合理利用城市土地。()
对用于搭设支架的地基的要求中,错误的是()。
个体发展的两个反抗期的共同点包括()。
AstudyfoundthattheradiationfromCTscans—thetestsregularlyusedto【C1】______internalinjuriesorsignsofcancer—islike
A、Theislandhasbecomefamousforitsresearchfacilities.B、Thepatternsofmarriagehavechanged.C、Manydeafpeoplehavereg
Ifthegovernmentfailedtotakeaction,______(下降的出口率将对经济产生影响).
最新回复
(
0
)