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陕西省2023-2024学年度第二学期八年级期中调研试题（卷）B数学.考卷答案试卷答案
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M:Thankyou.I'mverypleasedtobehere.W:Didyoualwayswanttobeanastronaut?M:Notexactly.Myfatherlikesreadingsciencemagazines.WhenIwasyoung,heusedtotakemetoairshows,whichIreallyloved.Ithinkmyinterestinflyingcamefromthat.W:Didyoudoanyotherjobs?M:Istudiedengineeringatcollege,thenIworkedasapilotformanyyears.Itraveledallovertheworld.Ilovedmyjob,butasIgotolder,Iwantedanewchallenge.That'swhenIdecidedtobecomeanastronaut.(Text8)W:Myguesttodayisabouttomakeaspecialtrip.He'llbespendingtendaysonaspacestationasitorbitstheEarth.Grant,welcome.M:Hi.W:Whatareyoumostlookingforwardtoabouttheflight?M:It'skindofhardtosay.ButIguesstheansweristhelaunch.ThefirstexperienceofweightlessnessandseeingtheEarthfromoutsidetheatmospherearegoingtobegreattoo.W:Don'tyoufeelscaredatall?M:IwouldbelyingifIsaidthatI'mnotscaredatall.ButI'vedonemonthsoftrainingwithrealastronautssoIhopeI'muptothechallenge.W:Andwasthetrainingdifficult?M:Yes,especiallythesurvivaltraining.Itwasphysicallychallengingwhenwehadtoprepareforanunexpectedlandingintheseaorinanextremewinterclimate.Muchworsethanthetrainingforweightlessness,althoughthatwasprettytoughtoo.(Text9)W:Hi,Albert.Iknowyouspentseveralmonthslivingontheinternationalspacestationrecently.Whatdoyouthinkwasthemostdifficultpartofyourtrip?M:Actually,nothingwasreallydifficultbecausewedidlotsoftraining.Iknewwe'dbelivinginasmallarea,veryclosetoeachother,andeverybodykneweverythingaboutyou,sothatwasn'taproblem.IsupposesometimesIgotabittiredofhavingtospendtwohoursworkingouteveryday,butthat'sjustsomethingyou'vegottodo.W:Tostopyourmusclesandbonesfromgettingtooweak?M:That'sright.Andyouhavetobecarefulaboutwhatyoueat.Weallchoseourownfoodbeforegoinguptothespacestation,soeachofushadapersonalsupply.Therewasasurprisinglywiderangeoffoodthatyoucouldhaveupthere.Anditdidn'ttakeallthatlongtogetamealready,whichwasgood.W:Didyoueverfeellonelywhenyouwereupthere?M:Lonely?Notatall.Therewerethreeofusplusthehugeteamdownontheground.Wecouldturntothematanytime.(Text10)(M)WelcometotheScienceShow.I'myourhost,David.It'safullmoontonight,soit'sagoodtimetotalkaboutthemoon.Todaywe'regoingtotalkaboutthemoon'sinfluenceonthebehavior-2
10.如图表示某人在休息时,单位时间内流经其单位面积皮肤血管内血液的相对流量。在时刻A,室内温度由15^C突升到40^C;;在时刻B,室内温度又突降至15^C。。下列说法正确的是A.在BC段时间内,人体肾上腺素分泌量增加B.在AB段时间内,人体内酶的活性比BC段时间内高C.在时刻A室内温度变化时,皮肤毛细血管收缩,汗腺分泌增多D.在AB段时间内,因环境温度高于人体温度,故人体不散热
