13、确定试验室配合比所用的砂石（）。

一位小学生在没有人督促的情况下，能够独立地完成各项作业，反映了其意志的（）品质。

13．现金流入与现金流出的差额被称为净现金流量。

查询所有有成绩的同学的学号。

13、小王准备购买单反相机，从报纸、专业摄影杂志等媒体的客观报道和各种消费者团体的评论中获得了相关信息，这种信息来源属于（）

3.关于时间系统，下面说法正确的是

13.对技术要求复杂的建设项目,需要在初步设计阶段和施工图设计阶段增加()。

23.下面（）不是建筑设计的依据。

在建筑造型设计中，对比弱，则变化大，感觉明显，因此在建筑设计中恰当地运用对比的强弱是取得统一与变化的有效手段。

长期投资决策中动态评价方法主要有哪几种（）。

Forhundredsofyears,thecriminallaw(刑法)hasbeenbuiltaroundtheideathatwrongdoersmustbepunishedfortheircrimes.Themostbasicargumentforpunishmentisthatitpreserveslawandorderandrespectsforauthority.Fromthispointofview，punishmentdoestwothings.Itupholdsthelaw，anditpreventsothersfromthinkingtheycangetawaywithdoingthesamethingwithoutpunishment.Punishmentisbasedontheideathatmanypeoplehaveabarelycontrolleddesiretoactinforbiddenways.Oneofthebestwaystoreducecrimeistoreformorrehabilitate(改造)habitualcriminals.Themainproblemisnotthefirstoffenderorthepettythiefbuttherepeatedoffenderwhocommitsincreasinglyseriouscrimes.Accordingtocriminologists，crimewoulddecreasegreatlyifallsuchoffenderscouldbeturnedawayfromwrongdoing.ButU.S.prisonshavehadlittlesuccessinrehabilitatinginmates.Abouttwo-thirdsofthepeoplearrestedinanyyearhaveapreviouscriminalrecord.Rehabilitation(改造)ofcriminalscouldprobablybeimprovedgreatlyifexpertscouldprovidetherightkindofprogramfordifferenttypesofoffenders.Criminalsvarywidelyinthekindsofcrimestheycommit，theiremotionalproblems，andtheirsocialandeconomicbackgrounds.Notalloffenderscanbehelpedbythesametreatment.Manyrequiretheaidofphysicians,psychiatrists,orpsychologists.Othersrespondwelltoeducationalorvocationaltraining.Intheearly1990s,therewereabout1,300,000criminalsinU.S.city,county,state,andfederalcorrectionalinstitutions，andabout500,000morewereoutonparole.Societyspentmorethan$15billiontooperateprisonsandrelatedinstitutionsyearly,butonlyasmallpartofthissumwenttoprovidetreatment.Nearlyallthefundswereusedtofeedandclotheprisonersandtokeepthemundercontrol.Sincethe1ate1970s,however,therehasbeenatrendtowardpunishmentratherthanrehabilitationofoffenders.Prisonsentences(徒刑)arelonger.CapitalpunishmentshavebeenusedmorefrequentlysincetheU.S.SupremeCourtliftedadeathpenaltybanin1976.Nevertheless,crimepreventionshouldaimtopreventpeoplefrombecomingcriminalsinthefirstplace.Suchagoalprobablywouldbenefitfromreformprogramsinurbanslums.Theseprogramswouldincludeimprovedhousing,schools,andrecreationprogramsandincreasedjobopportunities.Therearemanyotherwaystoreducecrime.Peoplecanbeeducatedorpersuadedtotakegreaterprecautionsagainstcrime.Theycanbetaught,forexample,howtoprotecttheirhomesfromburglary.Automobiletheftswoulddropsharplyifdriversremovedtheirkeysandlockedtheircarswhenleavingthem.Betterlightinghelpsdiscouragepurse-snatchingsandotherrobberiesoncitystreetsandinparks.Manyexpertsbelievethatstrictgun-licensinglawswouldgreatlyreducecrime.13.Theauthorspeculatesthatrehabilitationcanbemademoreeffectiveif____.

完全竞争市场中厂商总收益曲线的斜率是

下列关于股评业务的说法，（）是比较恰当的。

（13）以下消极修辞的标准中哪一项与逻辑无关？（）

下列情形中，投标人中标有效的是（）。