设全集U={1,2，3，4，5}，集合A={1，2，5},则A的补集为()

5、资源需要量是指项目施工过程中所必须消耗的各类资源的（）。

5.运动员比赛时不用穿戴哪个护具？

5.J’aimalàlatête,demainjevais ________lemédecin.

设集合A={1,2,3}，集合B={2,3,4,5}，A∩B=（）。

患者，男性，23岁。高热5天，怀疑菌血症，需取血做血培养，其目的是

5、会计主体在会计确认、计量和报告时以货币作为计量尺度，反映会计主体的经济活动指的会计基本假设是（　）。

设全集U={1,2，3，4，5}，集合A={3，4，5},则∁UA=()

书架上有3本不同的数学书，5本不同的历史书，2本不同的音乐书，如果从书架上任取一本，共有（）种取法。

5、鲍特的早期电影《火车大劫案》摆脱了实际时间的束缚开创了还运用了（）将故事的先河从而发展了电影叙事。

5.1977年上映的数字电影的先驱（）

5.Largedoorsslideopen_______thecrowd-linedstreets.

5.WhatdoesProfessorGoelplantodonextwithJillWatson?

5. WhatdoesProfessorGoelplantodonextwithJillWatson?

Althoughmanyofusmayfeelair-conditionersbringrelieffromhot,humidorpollutedoutsideair,theyposemanypotentialhealthhazards.Muchresearchhaslookedathowthemovementofairinsideaclosedenvironment---suchasanofficebuilding---canspreaddiseaseorexposepeopleinthebuildingtoharmfulchemicals.OneofthemorewidelypublicizeddangersisthatofLegionnaire’sdisease,whichwasfirstrecognizedinthe1970s.Thiswasfoundtohaveaffectedpeopleinbuildingswithair-conditioningsystemsinwhichwarmairpumpedoutofthesystem’coolingtowerswassomehowsuckedbackintotheairintake(通风口),inmostcasesduetopoordesign.Thewarmair,filledwithbacteria,wascombinedwithcooled,conditionedairandwasthencirculatedaroundvariouspartsofthebuilding.Studiesshowedthatevenpeopleoutsidesuchbuildingswereatriskiftheywalkedpastairexhaustpipes.Largeair-conditioningsystemsaddwatertotheairtheycirculatebymeansofhumidifiers(湿度调节器).Inoldersystems,thewaterusedforthisprocessiskeptinspecialreservoirs,thebottomsofwhichprovidebreedinggroundsforbacteriawhichcanfindtheirwayintotheventilation(通风)system.Therisktohumanhealthfromthissituationhasbeenhighlightedbythefactthattheimmunesystems(免疫系统)ofapproximatelyhalfofworkersinair-conditionedofficebuildingshavedevelopedtheabilitytofightofftheorganismsfoundatthebottomofsystemreservoirs.Butchemicalscalled“biocides”areaddedtoreservoirstomakethemgerm-free,andtheyaredangerousintheirownrightinsufficientquantities,astheyoftencontaincompoundsstronglylinkedtocancers.Finally,itshouldbepointedoutthattheartificialclimaticenvironmentcreatedbyair-conditionerscanalsoaffectus.Inanaturalenvironment,whetherindoororoutdoor,therearesmallvariationsintemperatureandhumidity.Indeed,thehumanbodyhaslongbeenaccustomedtothesenormalchanges.Inanair-conditionedlivingorworkingenvironment,however,bodytemperaturesremainwellunder37℃,ournormaltemperature.Thisleadstoaweakenedimmunesystemandthusgreaterexposuretodiseasessuchascoldsandflu.5.Thelastparagraphimpliesthatinartificialclimaticenvironmentcreatedbyair-conditioners,ourimmunesystemcanbeweakenedand_.