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
考研
All over the earth’s surface is a layer of air which extends upwards for many miles. This air (1)_____ the oxygen without which
All over the earth’s surface is a layer of air which extends upwards for many miles. This air (1)_____ the oxygen without which
admin
2009-04-27
28
问题
All over the earth’s surface is a layer of air which extends upwards for many miles. This air (1)_____ the oxygen without which neither plants nor animals (2)_____ live. Its movements, temperature and pressure (3)_____ the weather, and it is a vehicle (4)_____ the clouds of water vapor (5)_____ condense and fall as rain. It forms a blanket which (6)_____ us from the extreme heat of the sun during the day and (7)_____ the extreme cold when the sun has (8)_____
It is chiefly (9)_____ air that sound travels, so that if there were no air we should (10)_____ practically nothing. The atmosphere is held (11)_____ the earth’s surface by the gravitational pull of the earth—that is, it has weight. High up it is thin (12)_____ near the surface it is compressed by the (13)_____ of air above, and is more dense. The weight of air pressing (14)_____ each square inch of surface at sea-level is nearly (15)_____ pounds, which means that the total force (16)_____ the skin of an average man is about 30,000 pounds. He is not, (17)_____ this because the pressure is equal in all directions and the pressure inside him is equal (18)_____ -that without, but should he go up in a balloon to a height at which the outside- pressure is (19)_____ he would suffer acutely. It is (20)_____ this reason that the cabins of aeroplanes are ’pressurized’.
选项
A、sit
B、set
C、sat
D、settled
答案
B
解析
表示太阳落下,用set。
转载请注明原文地址:https://jikaoti.com/ti/rGURFFFM
0
考研英语一
相关试题推荐
Joyandsadnessareexperiencedbypeopleinallculturesaroundtheworld,buthowcanwetellwhenotherpeoplearehappyord
Joyandsadnessareexperiencedbypeopleinallculturesaroundtheworld,buthowcanwetellwhenotherpeoplearehappyord
WhenIaskexperiencedcollegeteachersandadministratorstodescribehowcollegestudentshavechangedovertheyears,Ioften
Onthesurface,Marsisthepictureofdesolation.Abarrenlandremains【C1】______forhundredsofmillionsofyears,motionless【
Readthefollowingtextandanswerquestionsbyfindinginformationfromtherightcolumnthatcorrespondstoeachofthemarked
ThelivesoftheAncientGreeksrevolvedarounderis,aconceptbywhichtheydefinedtheuniverse.Theybelievedthattheworld
Airbnb,thepopularplatformthatletspeoplerentouttheirhomesandapartments,releasedtheresultsofavolunteersurveyth
ReadthefollowingtextandanswerthequestionsbychoosingthemostsuitablesubheadingfromthelistA-Gforeachnumberedpa
WhenthegiantIndiantechnology-servicesfirmInfosysannouncedlastNovemberthatitwouldopenadesignandinnovationhubin
Socialsciencehasweighedinonthe"tigermom"debate,anditlookslikeeveryoneisright:Bothover-protectiveandlaid-back
随机试题
如果企业承担社会责任就会以牺牲自己的经济利益为代价。()
PKI的性能中,电子商务通信的关键是
A.liveabetterlifeB.madeupofmorethan50islandsC.HighereducationinstituteD.notbytheParliament,butbythepeop
WhenIwasyoung,Iwasn’tused______whenImadesomemistakes.
药品合格证明和其他标识是指
直接抹灰或直接喷刷式顶棚仅适用于()。
预付款金额为()万元。在进行工程价款动态结算时,价格调整所要考核的地点一般是()。
IG541混合气体灭火剂是由哪些气体按一定比例混合而成的气体?
下列关于职业流行病学调查论述正确的是()。
有三个关系R,S和T如下图所示:则由关系R和S得到关系T的运算是()。
最新回复
(
0
)