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物联网
所属分类:互联网技术
物联网是互联网、传统电信网等信息承载体,让所有能行使独立功能的普通物体实现互联互通的网络。
物联网
所属分类:互联网技术
物联网是互联网、传统电信网等信息承载体,让所有能行使独立功能的普通物体实现互联互通的网络。
(1)以下哪一项不属于物联网的实现基础
物联网的核心基础是人与物的标识与通信能力,近距离无线通信技术等。
以下哪个选项不属于物联网的范畴()
RFID属于物联网的哪个层()。
RFID卡()可分为:有源(Active)标签和无源(Passive)标签。
物联网节点之间的无线通信,一般不会受到下列()因素的影响。
网络传输层是物联网的核心技术,是联系物理世界和信息世界的纽带。
5.甲公司经营杠杆系数为2,财务杠杆系数为1.5;乙公司经营杠杆系数为1.5,财务杠杆系数为2,若销售增长10%,则有()
答案B。两家公司的总杠杆系数相同,所以税后利润增幅相同。
6.如果甲企业经营杠杆系数为1.5,总杠杆系数为3,则下列说法不正确的是()
答案选D。因为经营杠杆系数为1.5,所以销售量增加10%,息税前利润将增加12%*1.5=18%,所以不选择A。由于财务杠杆系数为3/1.5=2,所以息税前利润增加20%,每股利润将增加20%*2=40%,所以不选择B。由于总杠杆系数为3,...
9.某企业预期经营杠杆系数1.5,本期息税前利润为600万元,本期固定经营成本为()万元。
答案选C。1.5=( 600+F)÷ 600,则 F=300(万元)
VHDL中,定义常数的关键词是_______。
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.5)Whichnationalityistheleastpunctualaccordingtothetext?
AndroidStudio支持开发物联网的应用。
物联网的首要设计目标是()。