3维欧氏空间R3(取标准内积)中的向量(2,3,－1),(1,1,0),(0,1,－1)生成的子空间的正交补空间的维数是（）。

已知三阶实对称方阵$A$有特征值2,2,3,且$(1,1,1)^{T}$是属于3的特征向量。则$A$的属于2的线性无关的特征向量是（)。

设(3(alpha_{1}-alpha)+2(alpha_{2}+alpha)=5(alpha_{3}+alpha),)试求向量`alpha=`_____，其中`alpha_{1}=(2,5,1,3)^{T},alpha_{2}=(10,1,5,10)^{T}`，(alpha_{3}=(4,1,-1,1)^{T}。)

一个数各位数的立方和等于它本身（例：153=1*1*1+5*5*5+3*3*3），则这样的数称为水仙花数，求100-999中所有的水仙花数intmain(){inti,a,b,c;for(i=100;i<=999;i++){a=i/100;b=填空;c=i%10;if(填空)printf("%5d",i);}return0;}选择正确的填空

一粒浅红色半透明的弧面型宝石，点测折射率为1.74，可能是下列哪一种宝石

1.岩层面的产状要素包括:（）

下列所述不是软件的特点的是（）。

在室内软装设计中，以什么设计要素确立为纲领和明确方向的？

在室内软装设计的核心价值中，以什么为骨骼来满足功能？

室内软装设计师的工作领域有哪些？

软件的复杂性是（），它引起人员通信困难、开发费用超支、开发时间超时等问题。

Achildwhohasoncebeenpleasedwithatalelikes,asarule,tohaveitretoldinalmostthesamewords,butthisshouldnotleadparentstotreatprintedfairystoriesasformaltexts.Itisalwaysmuchbettertotellastorythanreaditoutofabook,and,ifaparentcanproducewhat,intheactualsituationofthetimeandthechild,isanimprovementontheprintedtext,somuchthebetter.Achargemadeagainstfairytalesisthattheyharmthechildbyfrighteninghimormakinghimsadthinking.Toprovethelatter,onewouldhavetoshowinacontrolledexperimentthatchildrenwhohavereadfairystoriesweremoreoftensorryforcrueltythanthosewhohadnot.Astofears,thereare,Ithink,somecasesofchildrenbeingdangerouslyterrifiedbysomefairystory.Often,however,thisarises(出现)fromthechildhavingheardthestoryonce.Familiaritywiththestorybyrepetitionturnsthepainoffearintothepleasureofafearfacedandmastered.Therearealsopeoplewhoobjecttofairystoriesonthegroundsthattheyarenotobjectivelytrue,thatgiants,witches,two-headeddragons,magiccarpets,etc.donotexist;andthat,insteadofbeingfondofthestrangesideinfairytales,thechildshouldbetaughttolearntherealitybystudyinghistory.Ifindsuchpeople,Imustsaysopeculiar(奇怪的)thatIdonotknowhowtoarguewiththem.Iftheircaseweresound,theworldshouldbefullofmadmenattemptingtoflyfromNewYorktoPhiladelphiaonastickorcoveringatelephonewithkissesinthebeliefthatitwastheirbelovedgirl-friend.Nofairystoryeverdeclaredtobeadescriptionoftherealworldandnocleverchildhaseverbelievedthatitwas.1.Theauthorconsidersthatafairystoryismoreeffectivewhenitis_______.

1-1.What’sthemainfunctionofthefirstsentenceinthepassage?

产品ZXCA-F第1时段主生产计划量为100，其产品结构如图所示，其中部件CL在工作中心25完成，单件加工时间为0.6，批量为20，准备时间为1.1，其他部件不占用工作中心25，那么加工单件产品ZXCA-F对工作中心25来说所需的总时间为多少？

Cross-cultureUnderstandingonBusinessWeliveinaglobalvillage,buthowwelldoweknowandunderstandthecross-cultureonbusiness?MaybeweassumethatthewidespreadunderstandingofEnglishlanguagemeansacorrespondingunderstandingofEnglishcustoms.However,itmightnotbenecessarilythecase.Ifwewanttohavegoodbusiness,wemusthavethecross-cultureunderstandingonbusiness.Herearesometipsforyoutopayattentionto:1.EyeContactInmanyWesterncountries,includingtheUnitedStates,apersonwhodoesnotmaintain“goodeyecontact”isregardedasbeingslightlysuspicious.Americansunconsciouslyassociatepeoplewhoavoideyecontactasunfriendly,insecure,untrustworthy,inattentiveandimpersonal.However,incontrast,Japaneseadultslowertheireyeswhenspeakingtoasuperior,agestureofrespect.InThailandyoushouldclaspyourhandstogetherandloweryourheadandyoureyeswhenyougreetsomeone.LatinAmericanculture,aswellassomeAfricancultures,suchasNigeria,havelongerlookingtime,butprolongedeyecontactfromanindividualoflowerstatusisconsidereddisrespectful.IntheUS,itisconsideredrudetostare–regardlessofwhoislookingatwhom.Incontrast,thepoliteEnglishmanistaughttopaystrictattentiontoaspeaker,tolistencarefully,andblinkhiseyestoletspeakerknowheorshehasbeenunderstoodaswellasheard,whileinPakistanyoumustn’twinkforit’soffensive.2.TimeofArrivalImagineyouhavemadeanappointmentatthreeo’clock.Whattimeshouldyouexpectyourforeignbusinesscolleaguestoarrive?Ifthey’reGerman,they’llberightontime.Ifthey’reAmerican,they’llprobablybe15minutesearly.Ifthey’llbeBritish,they’llbe15minuteslateandyoushouldallowuptoanhourfortheItalians.3.AtMealandDrinkingTimeTheBritisharehappytohavebusinesslunchanddiscussbusinessmatterswithadrinkduringthemeal;theJapaneseprefernottoworkwhileeating.Lunchisatimetorelaxandgettoknowoneanother,andtheyrarelydrinkatlunchtime.TheGermansliketotalkbusinessbeforedinner.However,incontrast,theFrenchliketoeatfirstandtalkafterwards.Theyhavetobewellfedandwateredbeforetheydiscussanything.Andyoushouldn’tsitdowninacaféuntilyou’veshakenhandswitheveryoneyouknowinFrance.InRussiayoumustmatchyourhostsdrinkfordrink,ortheywillthinkyouareunfriendly;inAmericayoushouldeatyourhamburgerwithbothhandsandasquicklyasyoucan.Youshouldn’ttrytohaveaconversationuntilitiseaten;intheMiddleEastyoumustneverusethelefthandforeating,drinking,smokingorgreeting.Also,youshouldtakecarenottoadmireanythinginyourhost’shome.Theywillfeelthattheyhavetogiveittoyou.Thereareothersuggestionsoncross-cultureunderstandingonbusinessthatmighthelpyouwithyourbusiness.Onlyafewhavebeenmentionedhere.Beforeyougotoacountryonbusiness,youshouldhavetolearnsomethingmoreaboutherculture.WheninRome,doastheRomansdo.Choosethebestanswerforthefollowingquestions.1)WhichofthefollowingisnottrueaboutAmericanaccordingtothetext?