判断如下闭环特征方程(varphi_{rmc}(z)=z^3+frac{2}{3}z^2-frac{1}{4}z-frac{1}{6})的根是否在单位圆内。

Passage1.4.HowdidDickfeelabouthisgirlfriend’snewdress?

2×19年2月5日，甲公司以7元/股的价格购入乙公司股票100万股，支付手续费1.4万元。甲公司将该股票投资分类为交易性金融资产。2×19年12月31日，乙公司股票价格为9元/股。2×20年2月20日，乙公司宣告分配现金股利，甲公司应获得现金股利8万元；3月1日，甲公司收到现金股利；3月20日，甲公司以11.6元/股的价格将其持有的乙公司股票全部出售。不考虑其他因素，甲公司因持有乙公司股票在2×20年确认的投资收益是（）。

Cross-cultureUnderstandingonBusinessWeliveinaglobalvillage,buthowwelldoweknowandunderstandthecross-cultureonbusiness?MaybeweassumethatthewidespreadunderstandingofEnglishlanguagemeansacorrespondingunderstandingofEnglishcustoms.However,itmightnotbenecessarilythecase.Ifwewanttohavegoodbusiness,wemusthavethecross-cultureunderstandingonbusiness.Herearesometipsforyoutopayattentionto: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.TimeofArrivalImagineyouhavemadeanappointmentatthreeo’clock.Whattimeshouldyouexpectyourforeignbusinesscolleaguestoarrive?Ifthey’reGerman,they’llberightontime.Ifthey’reAmerican,they’llprobablybe15minutesearly.Ifthey’llbeBritish,they’llbe15minuteslateandyoushouldallowuptoanhourfortheItalians.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.4)Whichnationalityisthemostpunctualaccordingtothetext?

对于序列numbers=[1,2,3,4,5,6,7,8,9,10]，以下相关操作和对应输出正确的是哪一项?（）

以下程序的输出结果是（）。ls1=[1,2,3,4,5]ls2=[3,4,5,6,7,8]cha1=[]foriinls2:ifinotinls1:cha1.append(i)print(cha1)

若一幅图像含有四个灰度，其概率分别为1/8,1/8,1/4,1/2，编码后各灰度的码字长度分别为4，4，3，2，其平均码字长度是（）。

运行下面程序时，会产生什么异常？（）publicclassX7_1_5{publicstaticvoidmain(String[]args){int[]z={1,2,3,4};intp=z[4];intx=0;inty=5/x;}}

下列程序的输出结果是（）。#includestructabc{inta,b,c;};main(){structabcs[2]={{1,2,3},{4,5,6}};intt;t=s[0].a+s[1].b%s[0].c;printf("%d\n",t);}

已知x=[1,2,3,4,5,6,7]，那么x.pop()的结果是？（）

ls=[1,2,3,4,5,6],以下关于循环结构的描述，错误的是（）。

以下程序的输出结果是ls1=[1,2,3,4,5]ls2=[3,4,5,6,7,8]cha1=[]foriinls2:ifinotinls1:cha1.append(i)print(cha1)

下列程序的输出结果是（）。#includestructabc{inta,b,c;};main(){structabcs[2]={{1,2,3},{4,5,6}};intt;t=s[0].a+s[1].b%s[0].c;printf("%d\n",t);}

一个队的入队序列为1,2,3,4，则出队序列为（）。

以下程序的输出结果是（）。img1=[12,34,56,78]img2=[1,2,3,4,5]defdispl():print(img1)defmodi():img1=img2modi()displ()