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
2018-08-16
83
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. "
【C17】
选项
A、that
B、then
C、and
D、after
答案
B
解析
根据句子结构,前半句是由if引导的条件从句,所以后面的句子是主句,不需要任何连词,所以可以排除C、D,A。that显然不对,then是副词,意为“那么,因此”。
转载请注明原文地址:https://kaotiyun.com/show/S4PC777K
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
Ihavebeenhearing-impairedinmylifesinceIwasfiveyearsold.Puttingonhearingaidsinthemorninghasbeenjustasnorm
Ihavebeenhearing-impairedinmylifesinceIwasfiveyearsold.Puttingonhearingaidsinthemorninghasbeenjustasnorm
Afreelyfallingbodyhasanaccelerationof32feetasecondduringeachseconditfalls.
Itwasclever______attheanswerintwominutes.
Itisaterribleillustrationofman’sweaknesstonature,andthetsunami(海啸)thatstrucktheJapanesecoastinMarch,2011has
Beforeusingyournewpressurecooker,readthefollowing________carefully.
_______difficultiestheymaycomeacross,they’llhelponeanothertoovercomethem.
A.Totakeasimpleexample,weassumethatifwegreetacquaintancesinafriendlymanner,theywillacceptandreturnourgree
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
—Bytheway,whendidyougetyourlivingroom______?—LastSunday.
随机试题
关于离婚时财产分割问题,下列说法正确的有()
不合理处方包括
人乳中的脂肪易于消化吸收,是因为人乳中含有
施工现场的一台塔式起重机与1kV以下的外架空线路临近,其沿水平方向的最小安全距离为()。
在设计阶段影响工程造价的其他因素包括()。
不应通过“其他业务成本”科目核算的支出包括()。
社会工作者小武所服务的社区,外来打工人员家庭较多,其中许多中年妇女找不到合适的工作,待在家里无事可做。小武为她们组织了一个自助小组,推选了小组带头人,并根据他们的需要和问题,指导他们自主完成“主食厨房”的工商注册等一系列手续,既增加他们的经济收入,又可以服
一个随机抽取的顾客样本群体对一项市场调查中的问题做了回答。六个月后,另一个随机顾客样本群体回答了相同的问题,只是问题排列的顺序有所调整。两组样本对许多单个问题的回答方式有很大的差别,这表明有时只因排在前面的问题不同就会导致对后面问题的不同回答。上述论证依赖
算法的空间复杂度是指( )。
Clifcouldrunfastestinhistown.Henevershowedothershowfasthecouldrun.
最新回复
(
0
)