根据时间价值理论，在普通年金现值系数的基础上，期数减1、系数加1的计算结果，应当等于

甲公司和乙公司签订买卖合同，向乙公司购买3台机器设备，总价款为60万元，该买卖合同法律关系的主体是（　）。

重大误解的当事人自民事法律行为发生之日起3个月内没有行使撤销权，撤销权消灭

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.3)WhatadvicewouldyougivetosomebodygoingtoliveandworkinPakistan?

美国G.N.Lewis从结构观点提出广义的酸碱电子理论“凡是可以接受电子对的物质称为碱。凡是可以给出电子对的物质称为酸。

3.Thefieldcanbeviewedasthecombinationofanelectricfieldandamagneticfield.

坚持和发展（），是改革开放以来我们党全部理论和实践的鲜明主题，也是习近平新时代中国特色社会主义思想的核心要义。

毛泽东思想在（）等方面，以独创性的理论丰富和发展了马克思列宁主义。

科学发展观是对经济社会发展一般规律认识的深化，是马克思主义关于发展的世界观和方法论的集中体现，是中国特色社会主义理论体系的重要组成部分。

邓小平开创性地提出了（）、“一国两制”等具有浓厚中国特色的新概念新范畴，建构了中国特色社会主义理论的基本框架。

群众路线，就是一切从实际出发，理论联系实际，坚持在实践中检验真理和发展真理。

党在八大前后，特别是毛泽东在1957年2月所作的《关于正确处理人民内部矛盾的问题》的报告，系统论述了社会主义社会矛盾的理论。

新民主主义革命理论，是反映新民主主义革命客观规律的完备的理论形态。

毫不动摇坚持党对军队的绝对领导，坚持不懈用中国特色社会主义理论体系武装全军，持续培育当代革命军人（），大力发展先进军事文化，永葆人民军队性质、本色、作风。

在关系数据库规范化理论的研究中，在函数依赖的范畴内，第三范式达到了最高的规范化程度。