国开在线答案
- 2022-09-12 [判断] 剩余价值转化为利润是以剩余价值率转化为利润率为前提的（）
- 2022-09-12 [判断] 房价高的原因是因为地价高（）
- 2022-09-12 [判断] 相对人口过剩并非资本主义特有的现象（）
- 2022-09-12 [单选] —Linda,haveaniceholiday!—________________________
- 2022-09-12 [单选] —Congratulation！Youwontheprizeforbestphotography.—________________________
- 2022-09-12 [单选] Thenewcoat_____mewell.
- 2022-09-12 [单选] _____shecomesornotmakesnodifference.
- 2022-09-12 [简答] 二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确为“T”，错误为“F”。NewMaterialCanCoolBuildingsResearchersatStanford Universityhavedevelopedanewmaterialthatcanmoveheatoutofbuildingsandintospace.Thematerialcancoolbuildingsevenonhotdays.Thecoolingmaterialisaverythinsheetwithmanylayersthatcouldbeplacedonarooflikesolarpanels.However, insteadofturningsunlightintoenergyassolarpanelsdo,thematerialturnsheatintoinfraredradiation.ShanhuiFanisanelectricalengineeringprofessoratStanford University.Hesaysthatthepanelshavealayerofmaterialthatislikesand.Thepanelsalso actlikeamirror.Theytakeheatoutofbuildingsandreflectthelightfromthesun.Boththeheatandsunlightaresent100kilometersintoouterspace.Thepanelsarecooltothetouch,eveninthesun.Researcherssaytheycanreducetheindoortemperaturetonearly5degreesCelsiusbelowthetemperatureoutside.Mr.Fansaysitislikehavingawindowintospace.Hesaystheheatissentdirectlyintospacewithoutwarmingtheair. Buildingsindevelopingcountriesthatdonothaveelectricityorairconditioningcouldusethepanels.Inareaswhereoneisoff-grid,thereisasignificantpotentialbenefitforstoringmedicineorevenfood. Inmanyofthesesituations,beingabletoreducethetemperatureisimportant.Andthiswouldprovideawaytodoit.TheStanfordresearchersdescribedtheirtechnologyinthesciencepublicationNature.Theysaythemainproblemiscreatingactualcoolingsystemsusingthehigh-techpanels.Itmaybepossibletodevelopacoolingspraytechnologyinthenextthreetofiveyearsthatcouldbeusedonexisting solidstructures. 1.Thematerialcancoolbuildingsonly oncold days.2.Thematerialturnsheatintoinfraredradiation becauseitisaverythicksheetwithmanylayersthatcouldbeplacedonarooflikesolarpanels.3.Theheatofthebuildings andsunlightaresent100kilometersintoouterspace bythepanels.4.Theoff-gridareasmayusethepanelstoreducethetemperatureofbuildingstostoremedicineorevenfood.5.A coolingspraytechnology maybedeveloped inthenearfuturethatcouldbeusedonexistingsolidstructures.
- 2022-09-12 [单选] Ourfactorywill ______twentymoreworkersnextmonth.
- 2022-09-12 [单选] I havenodoubt________shewillcome.