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
2016-11-13
23
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/0wHC777K
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
Someofthecommitteememberssuggested______apartyforthevisitor,buttheChairmandidn’tapprove.
Now,however,therearepeoplewholookforanimmediatethrillfromariskyactivitywhichmayonlylastafewminutesoreven
Inthelast500years,nothingaboutpeople—nottheirclothes,ideas,orlanguages—haschangedasmuchaswhattheyeat.The
Wecan’tentertheroombecauseitsdoor______.
Johnwaslateforclassagain,buthecouldn’t______hislateness.
Mr.Smithusedtoworkthenight______inapowerplant.
Anyonewhohasriddenonarailroadtrainknowshowrapidlyanothertrain【C1】______bywhenitistravellinginthe【C2】______dire
Honeybeescannotlivealone.Theirbodystructureandinstinctsequipthemforlifeinacolony(群居)orcommunity,wheretheyhave
InBritainpeople______fourmilliontonsofpotatoeseveryyear.
Don’tgetyourschedule______;staywithusinthisclass.
随机试题
人体内氨的主要去路是
(2005年、2011年)在生长曲线上,测定细菌世代时间最好的时期是()。
天然地基土的分类中,粒径大于0.05mm,小于0.075mm的颗粒的土是( )。
增值税一般纳税人进口货物取得海关进口增值税专用缴款书,应当在完税凭证开具之日起180日后向主管税务机关申报抵扣,逾期不得抵扣进项税额。()
下列描述中不符合自知力不完整或无自知力的是()。
民主集中制是党的组织原则,适用于实施党委集体领导体制。在实行行政首长负责制的政府部门和实行法人负责制的经济活动中,不存在民主集中的问题。()
你所在监狱准备就监狱扁平化管理召开专题会议,届时将有多家对口监狱参加,你怎么做好准备工作?
甲、乙两人分别骑自行车和驾车从同一地点出发,已知甲骑了2675米时,乙驾车从起点站出发,速度为500米/分,甲骑车速度是乙驾车速度的。如果乙驾车每行驶5分钟后停车1分钟,则乙驾车出发后()分钟追上甲。
【庐山军官训练团】武汉大学2003年中华民国史真题
WhydomostvisitorscometoCambridge?Afterwhichyeardidthetownreallybegintodevelop?
最新回复
(
0
)